231912152130 has 16 divisors (see below), whose sum is σ = 556589165184. Its totient is φ = 61843240560.

The previous prime is 231912152089. The next prime is 231912152141. The reversal of 231912152130 is 31251219132.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 7730405071 = 231912152130 / (2 + 3 + 1 + 9 + 1 + 2 + 1 + 5 + 2 + 1 + 3 + 0).

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, 3865202506 + ... + 3865202565.

It is an arithmetic number, because the mean of its divisors is an integer number (34786822824).

Almost surely, 2^231912152130 is an apocalyptic number.

231912152130 is an abundant number, since it is smaller than the sum of its proper divisors (324677013054).

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

231912152130 is a wasteful number, since it uses less digits than its factorization.

231912152130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730405081.

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 231912152130 in words is "two hundred thirty-one billion, nine hundred twelve million, one hundred fifty-two thousand, one hundred thirty".