23230521569 has 2 divisors, whose sum is σ = 23230521570. Its totient is φ = 23230521568.

The previous prime is 23230521557. The next prime is 23230521593. The reversal of 23230521569 is 96512503232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20556390625 + 2674130944 = 143375^2 + 51712^2 .

It is a cyclic number.

It is not a de Polignac number, because 23230521569 - 2²⁸ = 22962086113 is a prime.

It is a super-2 number, since 2×23230521569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23230521529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615260784 + 11615260785.

It is an arithmetic number, because the mean of its divisors is an integer number (11615260785).

Almost surely, 2^23230521569 is an apocalyptic number.

It is an amenable number.

23230521569 is a deficient number, since it is larger than the sum of its proper divisors (1).

23230521569 is an equidigital number, since it uses as much as digits as its factorization.

23230521569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 23230521569 in words is "twenty-three billion, two hundred thirty million, five hundred twenty-one thousand, five hundred sixty-nine".