12131687117120 has 28 divisors (see below), whose sum is σ = 28888579948404. Its totient is φ = 4852674846720.

The previous prime is 12131687117087. The next prime is 12131687117161. The reversal of 12131687117120 is 2171178613121.

It can be written as a sum of positive squares in 2 ways, for example, as 8415058360384 + 3716628756736 = 2900872^2 + 1927856^2 .

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, 18955760801 + ... + 18955761440.

Almost surely, 2^{12131687117120} is an apocalyptic number.

12131687117120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131687117120 is an abundant number, since it is smaller than the sum of its proper divisors (16756892831284).

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

12131687117120 is an equidigital number, since it uses as much as digits as its factorization.

12131687117120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37911522258 (or 37911522248 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 41.

The spelling of 12131687117120 in words is "twelve trillion, one hundred thirty-one billion, six hundred eighty-seven million, one hundred seventeen thousand, one hundred twenty".