23151531275 has 12 divisors (see below), whose sum is σ = 28720182624. Its totient is φ = 18513300000.

The previous prime is 23151531269. The next prime is 23151531307. The reversal of 23151531275 is 57213515132.

It is not a de Polignac number, because 23151531275 - 2⁸ = 23151531019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138176 + ... + 255725.

It is an arithmetic number, because the mean of its divisors is an integer number (2393348552).

Almost surely, 2^23151531275 is an apocalyptic number.

23151531275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23151531275 is a deficient number, since it is larger than the sum of its proper divisors (5568651349).

23151531275 is a wasteful number, since it uses less digits than its factorization.

23151531275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396262 (or 396257 counting only the distinct ones).

The product of its digits is 31500, while the sum is 35.

The spelling of 23151531275 in words is "twenty-three billion, one hundred fifty-one million, five hundred thirty-one thousand, two hundred seventy-five".