20023339969 has 2 divisors, whose sum is σ = 20023339970. Its totient is φ = 20023339968.

The previous prime is 20023339957. The next prime is 20023340011. The reversal of 20023339969 is 96993332002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11548296369 + 8475043600 = 107463^2 + 92060^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023339969 - 2¹⁷ = 20023208897 is a prime.

It is a super-2 number, since 2×20023339969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20023339939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011669984 + 10011669985.

It is an arithmetic number, because the mean of its divisors is an integer number (10011669985).

Almost surely, 2^20023339969 is an apocalyptic number.

It is an amenable number.

20023339969 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023339969 is an equidigital number, since it uses as much as digits as its factorization.

20023339969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 46.

The spelling of 20023339969 in words is "twenty billion, twenty-three million, three hundred thirty-nine thousand, nine hundred sixty-nine".