23112564430391 has 2 divisors, whose sum is σ = 23112564430392. Its totient is φ = 23112564430390.

The previous prime is 23112564430303. The next prime is 23112564430447. The reversal of 23112564430391 is 19303446521132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23112564430391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23112564430091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556282215195 + 11556282215196.

It is an arithmetic number, because the mean of its divisors is an integer number (11556282215196).

Almost surely, 2^{23112564430391} is an apocalyptic number.

23112564430391 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112564430391 is an equidigital number, since it uses as much as digits as its factorization.

23112564430391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 23112564430391 in words is "twenty-three trillion, one hundred twelve billion, five hundred sixty-four million, four hundred thirty thousand, three hundred ninety-one".