23532919121 has 2 divisors, whose sum is σ = 23532919122. Its totient is φ = 23532919120.

The previous prime is 23532919097. The next prime is 23532919181. The reversal of 23532919121 is 12191923532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15021934096 + 8510985025 = 122564^2 + 92255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23532919121 is a prime.

It is not a weakly prime, because it can be changed into another prime (23532919181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11766459560 + 11766459561.

It is an arithmetic number, because the mean of its divisors is an integer number (11766459561).

Almost surely, 2^23532919121 is an apocalyptic number.

It is an amenable number.

23532919121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23532919121 is an equidigital number, since it uses as much as digits as its factorization.

23532919121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The spelling of 23532919121 in words is "twenty-three billion, five hundred thirty-two million, nine hundred nineteen thousand, one hundred twenty-one".