12131312120 has 32 divisors (see below), whose sum is σ = 27702853200. Its totient is φ = 4780098048.

The previous prime is 12131312117. The next prime is 12131312197. The reversal of 12131312120 is 2121313121.

It is a super-3 number, since 3×12131312120³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2260625 + ... + 2265984.

Almost surely, 2^12131312120 is an apocalyptic number.

12131312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131312120 is an abundant number, since it is smaller than the sum of its proper divisors (15571541080).

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

12131312120 is a wasteful number, since it uses less digits than its factorization.

12131312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526687 (or 4526683 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12131312120 its reverse (2121313121), we get a palindrome (14252625241).

The spelling of 12131312120 in words is "twelve billion, one hundred thirty-one million, three hundred twelve thousand, one hundred twenty".