131130012 has 48 divisors (see below), whose sum is σ = 330260000. Its totient is φ = 40255488.

The previous prime is 131130007. The next prime is 131130023. The reversal of 131130012 is 210031131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 131130012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104364 + ... + 105612.

Almost surely, 2^131130012 is an apocalyptic number.

131130012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131130012 is an abundant number, since it is smaller than the sum of its proper divisors (199129988).

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

131130012 is a wasteful number, since it uses less digits than its factorization.

131130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131130012 is about 11451.2013343579. The cubic root of 131130012 is about 508.0432672346.

Adding to 131130012 its reverse (210031131), we get a palindrome (341161143).

The spelling of 131130012 in words is "one hundred thirty-one million, one hundred thirty thousand, twelve".