231300131320 has 64 divisors (see below), whose sum is σ = 527628816000. Its totient is φ = 91244786688.

The previous prime is 231300131311. The next prime is 231300131339. The reversal of 231300131320 is 23131003132.

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, 1301329 + ... + 1468351.

It is an arithmetic number, because the mean of its divisors is an integer number (8244200250).

Almost surely, 2^231300131320 is an apocalyptic number.

231300131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231300131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263814408000).

231300131320 is an abundant number, since it is smaller than the sum of its proper divisors (296328684680).

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

231300131320 is a wasteful number, since it uses less digits than its factorization.

231300131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167512 (or 167508 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231300131320 its reverse (23131003132), we get a palindrome (254431134452).

The spelling of 231300131320 in words is "two hundred thirty-one billion, three hundred million, one hundred thirty-one thousand, three hundred twenty".