23169695921 has 2 divisors, whose sum is σ = 23169695922. Its totient is φ = 23169695920.

The previous prime is 23169695881. The next prime is 23169695933. The reversal of 23169695921 is 12959696132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16500687025 + 6669008896 = 128455^2 + 81664^2 .

It is a cyclic number.

It is not a de Polignac number, because 23169695921 - 2¹⁴ = 23169679537 is a prime.

It is not a weakly prime, because it can be changed into another prime (23169695221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11584847960 + 11584847961.

It is an arithmetic number, because the mean of its divisors is an integer number (11584847961).

Almost surely, 2^23169695921 is an apocalyptic number.

It is an amenable number.

23169695921 is a deficient number, since it is larger than the sum of its proper divisors (1).

23169695921 is an equidigital number, since it uses as much as digits as its factorization.

23169695921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 53.

The spelling of 23169695921 in words is "twenty-three billion, one hundred sixty-nine million, six hundred ninety-five thousand, nine hundred twenty-one".