23131303303291 has 2 divisors, whose sum is σ = 23131303303292. Its totient is φ = 23131303303290.

The previous prime is 23131303303271. The next prime is 23131303303379. The reversal of 23131303303291 is 19230330313132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131303303291 is a prime.

It is a super-2 number, since 2×23131303303291² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23131303303231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565651651645 + 11565651651646.

It is an arithmetic number, because the mean of its divisors is an integer number (11565651651646).

Almost surely, 2^{23131303303291} is an apocalyptic number.

23131303303291 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131303303291 is an equidigital number, since it uses as much as digits as its factorization.

23131303303291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 34.

The spelling of 23131303303291 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred three million, three hundred three thousand, two hundred ninety-one".