231578963372 has 12 divisors (see below), whose sum is σ = 405521820480. Its totient is φ = 115715586096.

The previous prime is 231578963311. The next prime is 231578963377. The reversal of 231578963372 is 273369875132.

It is a super-2 number, since 2×231578963372² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231578963377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18466847 + ... + 18479382.

It is an arithmetic number, because the mean of its divisors is an integer number (33793485040).

Almost surely, 2^231578963372 is an apocalyptic number.

It is an amenable number.

231578963372 is a deficient number, since it is larger than the sum of its proper divisors (173942857108).

231578963372 is a wasteful number, since it uses less digits than its factorization.

231578963372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36947800 (or 36947798 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 56.

The spelling of 231578963372 in words is "two hundred thirty-one billion, five hundred seventy-eight million, nine hundred sixty-three thousand, three hundred seventy-two".