12331401312 has 24 divisors (see below), whose sum is σ = 32369928696. Its totient is φ = 4110467072.

The previous prime is 12331401301. The next prime is 12331401361. The reversal of 12331401312 is 21310413321.

It is a tau number, because it is divible by the number of its divisors (24).

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, 64225953 + ... + 64226144.

It is an arithmetic number, because the mean of its divisors is an integer number (1348747029).

Almost surely, 2^12331401312 is an apocalyptic number.

12331401312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12331401312 is an abundant number, since it is smaller than the sum of its proper divisors (20038527384).

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

12331401312 is a wasteful number, since it uses less digits than its factorization.

12331401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128452110 (or 128452102 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12331401312 its reverse (21310413321), we get a palindrome (33641814633).

The spelling of 12331401312 in words is "twelve billion, three hundred thirty-one million, four hundred one thousand, three hundred twelve".