23431444430129 has 2 divisors, whose sum is σ = 23431444430130. Its totient is φ = 23431444430128.

The previous prime is 23431444430089. The next prime is 23431444430161. The reversal of 23431444430129 is 92103444413432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22592415909904 + 839028520225 = 4753148^2 + 915985^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431444430129 - 2⁸ = 23431444429873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23431444430129.

It is not a weakly prime, because it can be changed into another prime (23431444420129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715722215064 + 11715722215065.

It is an arithmetic number, because the mean of its divisors is an integer number (11715722215065).

Almost surely, 2^{23431444430129} is an apocalyptic number.

It is an amenable number.

23431444430129 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431444430129 is an equidigital number, since it uses as much as digits as its factorization.

23431444430129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 23431444430129 in words is "twenty-three trillion, four hundred thirty-one billion, four hundred forty-four million, four hundred thirty thousand, one hundred twenty-nine".