231616324000 has 48 divisors (see below), whose sum is σ = 569081317896. Its totient is φ = 92646528000.

The previous prime is 231616323973. The next prime is 231616324003. The reversal of 231616324000 is 423616132.

It can be written as a sum of positive squares in 4 ways, for example, as 105139359504 + 126476964496 = 324252^2 + 355636^2 .

It is a super-2 number, since 2×231616324000² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231616324000.

It is not an unprimeable number, because it can be changed into a prime (231616324003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28948041 + ... + 28956040.

Almost surely, 2^231616324000 is an apocalyptic number.

231616324000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231616324000 is an abundant number, since it is smaller than the sum of its proper divisors (337464993896).

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

231616324000 is an equidigital number, since it uses as much as digits as its factorization.

231616324000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57904106 (or 57904088 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 231616324000 in words is "two hundred thirty-one billion, six hundred sixteen million, three hundred twenty-four thousand".