23131033087 has 2 divisors, whose sum is σ = 23131033088. Its totient is φ = 23131033086.

The previous prime is 23131033049. The next prime is 23131033141. The reversal of 23131033087 is 78033013132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23131033087 - 2⁷ = 23131032959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131033007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565516543 + 11565516544.

It is an arithmetic number, because the mean of its divisors is an integer number (11565516544).

Almost surely, 2^23131033087 is an apocalyptic number.

23131033087 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131033087 is an equidigital number, since it uses as much as digits as its factorization.

23131033087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 23131033087 in words is "twenty-three billion, one hundred thirty-one million, thirty-three thousand, eighty-seven".