331131133312 has 32 divisors (see below), whose sum is σ = 753914635920. Its totient is φ = 141913342464.

The previous prime is 331131133273. The next prime is 331131133327. The reversal of 331131133312 is 213331131133.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184782103 + ... + 184783894.

Almost surely, 2^331131133312 is an apocalyptic number.

331131133312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331131133312 is an abundant number, since it is smaller than the sum of its proper divisors (422783502608).

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

331131133312 is an equidigital number, since it uses as much as digits as its factorization.

331131133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369566018 (or 369566006 counting only the distinct ones).

The product of its digits is 1458, while the sum is 25.

Adding to 331131133312 its reverse (213331131133), we get a palindrome (544462264445).

The spelling of 331131133312 in words is "three hundred thirty-one billion, one hundred thirty-one million, one hundred thirty-three thousand, three hundred twelve".