23431532401 has 2 divisors, whose sum is σ = 23431532402. Its totient is φ = 23431532400.

The previous prime is 23431532389. The next prime is 23431532459. The reversal of 23431532401 is 10423513432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17748634176 + 5682898225 = 133224^2 + 75385^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431532401 - 2⁷ = 23431532273 is a prime.

It is a super-2 number, since 2×23431532401² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23431532401.

It is not a weakly prime, because it can be changed into another prime (23431532101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715766200 + 11715766201.

It is an arithmetic number, because the mean of its divisors is an integer number (11715766201).

Almost surely, 2^23431532401 is an apocalyptic number.

It is an amenable number.

23431532401 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431532401 is an equidigital number, since it uses as much as digits as its factorization.

23431532401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 23431532401 in words is "twenty-three billion, four hundred thirty-one million, five hundred thirty-two thousand, four hundred one".