231521550152130 has 96 divisors (see below), whose sum is σ = 688310502332544. Its totient is φ = 52891461209088.

The previous prime is 231521550152083. The next prime is 231521550152159. The reversal of 231521550152130 is 31251055125132.

231521550152130 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 2 + 15 + 501 + 5 + 2 + 130 = 666.

It is a super-2 number, since 2×231521550152130² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95152687 + ... + 97555506.

It is an arithmetic number, because the mean of its divisors is an integer number (7169901065964).

Almost surely, 2^{231521550152130} is an apocalyptic number.

231521550152130 is an abundant number, since it is smaller than the sum of its proper divisors (456788952180414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231521550152130 is a wasteful number, since it uses less digits than its factorization.

231521550152130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192710120 (or 192710117 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 231521550152130 in words is "two hundred thirty-one trillion, five hundred twenty-one billion, five hundred fifty million, one hundred fifty-two thousand, one hundred thirty".