23131802431 has 2 divisors, whose sum is σ = 23131802432. Its totient is φ = 23131802430.

The previous prime is 23131802417. The next prime is 23131802531. The reversal of 23131802431 is 13420813132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23131802431 - 2⁷ = 23131802303 is a prime.

It is a super-2 number, since 2×23131802431² (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 23131802431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131802531) 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, 11565901215 + 11565901216.

It is an arithmetic number, because the mean of its divisors is an integer number (11565901216).

Almost surely, 2^23131802431 is an apocalyptic number.

23131802431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131802431 is an equidigital number, since it uses as much as digits as its factorization.

23131802431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 23131802431 in words is "twenty-three billion, one hundred thirty-one million, eight hundred two thousand, four hundred thirty-one".