231304321200 has 120 divisors (see below), whose sum is σ = 750324198400. Its totient is φ = 60900353280.

The previous prime is 231304321153. The next prime is 231304321249. The reversal of 231304321200 is 2123403132.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1125160 + ... + 1314759.

Almost surely, 2^231304321200 is an apocalyptic number.

231304321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231304321200 is an abundant number, since it is smaller than the sum of its proper divisors (519019877200).

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

231304321200 is a wasteful number, since it uses less digits than its factorization.

231304321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440019 (or 2440008 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 231304321200 its reverse (2123403132), we get a palindrome (233427724332).

The spelling of 231304321200 in words is "two hundred thirty-one billion, three hundred four million, three hundred twenty-one thousand, two hundred".