231304304120 has 64 divisors (see below), whose sum is σ = 524124756000. Its totient is φ = 91866181120.

The previous prime is 231304304111. The next prime is 231304304221. The reversal of 231304304120 is 21403403132.

It is a super-2 number, since 2×231304304120² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20800802 + ... + 20811918.

Almost surely, 2^231304304120 is an apocalyptic number.

231304304120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231304304120 is an abundant number, since it is smaller than the sum of its proper divisors (292820451880).

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

231304304120 is a wasteful number, since it uses less digits than its factorization.

231304304120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14768 (or 14764 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 231304304120 its reverse (21403403132), we get a palindrome (252707707252).

The spelling of 231304304120 in words is "two hundred thirty-one billion, three hundred four million, three hundred four thousand, one hundred twenty".