23131019963 has 2 divisors, whose sum is σ = 23131019964. Its totient is φ = 23131019962.

The previous prime is 23131019953. The next prime is 23131020023. The reversal of 23131019963 is 36991013132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131019963 is a prime.

It is not a weakly prime, because it can be changed into another prime (23131019903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565509981 + 11565509982.

It is an arithmetic number, because the mean of its divisors is an integer number (11565509982).

Almost surely, 2^23131019963 is an apocalyptic number.

23131019963 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131019963 is an equidigital number, since it uses as much as digits as its factorization.

23131019963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The spelling of 23131019963 in words is "twenty-three billion, one hundred thirty-one million, nineteen thousand, nine hundred sixty-three".