12131688460 has 24 divisors (see below), whose sum is σ = 25517862720. Its totient is φ = 4844805504.

The previous prime is 12131688451. The next prime is 12131688467. The reversal of 12131688460 is 6488613121.

It is not an unprimeable number, because it can be changed into a prime (12131688467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479220 + ... + 503899.

It is an arithmetic number, because the mean of its divisors is an integer number (1063244280).

Almost surely, 2^12131688460 is an apocalyptic number.

12131688460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131688460 is an abundant number, since it is smaller than the sum of its proper divisors (13386174260).

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

12131688460 is a wasteful number, since it uses less digits than its factorization.

12131688460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983745 (or 983743 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 12131688460 in words is "twelve billion, one hundred thirty-one million, six hundred eighty-eight thousand, four hundred sixty".