231503507152 has 40 divisors (see below), whose sum is σ = 449245621440. Its totient is φ = 115569296640.

The previous prime is 231503507111. The next prime is 231503507161. The reversal of 231503507152 is 251705305132.

It is a super-2 number, since 2×231503507152² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46946127 + ... + 46951057.

It is an arithmetic number, because the mean of its divisors is an integer number (11231140536).

Almost surely, 2^231503507152 is an apocalyptic number.

It is an amenable number.

231503507152 is a deficient number, since it is larger than the sum of its proper divisors (217742114288).

231503507152 is a wasteful number, since it uses less digits than its factorization.

231503507152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971 (or 8965 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 231503507152 in words is "two hundred thirty-one billion, five hundred three million, five hundred seven thousand, one hundred fifty-two".