To clarify redlock's statement the Central Banks seem to be obfuscating the number of banknotes produced and the number of banknotes issued. The Bank of England has a table of banknotes issued, but they may have produced a lot more.
Value of banknotes issued (£ millions)
Each year we issue new banknotes to replace unfit ones and to meet any increases in overall demand. The value of each denomination issued are shown in the table below.
£5 £10 £20 £50 Total
2013/14 793 2,141 5,281 2,260 10,474
2014/15 869 2,433 6,202 2,165 11,668
2015/16 977 5,683 5,056 1,831 13,547
2016/17 1,643 4,008 6,382 3,188 15,220
2017/18 386 8,192 3,291 2,169 14,039
2018/19 154 3,568 1,211 1,616 6,549
2019/20 226 3,002 5,198 369 8,795
The US seems to be very clear (unless they are having problems) about production numbers, but they don't release statistics about number issued. For example, the 2009 color $100 banknotes are listed as 1,440,000,000 produced but they had serious flaws in them and were held back until better machinery could be developed to remove the flawed notes. To this day they have never released how many of these notes were actually issued.
Sweden consider production quantities (actually order quantities) as a state secret, so we don't know how many 1000SEK banknotes were actually ordered. They only distribute a tiny number of these notes, so nobody knows if they have a warehouse full of 1000SEK notes if the economy were to tank.
Sweden circulation number in millions of SEK
3,128 kr --- coins (1kr, 2kr, 5kr and 10kr)
41,869 kr --- 500kr notes (worth US$55.88 apiece) for ATMs
12,044 kr --- 20kr, 50kr, 100kr, 200kr, 1000kr banknotes
5,493 kr --- Invalid banknotes which can still be turned in to the Central Bank, but are not legal tender in stores.
Norges bank ordered 24.4 million new 1000NKK banknotes in 2019 (launched on 14 November 2019) to replace the 11.5923 million 1000NKK banknotes in circulation at the end of 2019. So we have good evidence that Norges will still be supporting this denomination for the next decade at least.
It is not clear how cashlessness will come about (if ever). South Korea has declared coins will no longer be legal tender at some date, with the possibility that notes may not be legal tender at some date in the future.
Sweden will probably wait until they issue the e-krona, and also the invalid banknotes have reached their expiration date. They could stop production of all but the 500kr banknote so foreigners, or people who are stuffing money under a mattress, and the inflexible can still get cash from ATMS. But change can only be provided on phone apps or cards or deposited into bank accounts with SWISH.