12131379 has 12 divisors (see below), whose sum is σ = 18871216. Its totient is φ = 7465392.

The previous prime is 12131377. The next prime is 12131389. The reversal of 12131379 is 97313121.

12131379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12131379 - 2¹ = 12131377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51727 + ... + 51960.

Almost surely, 2^12131379 is an apocalyptic number.

12131379 is a deficient number, since it is larger than the sum of its proper divisors (6739837).

12131379 is a wasteful number, since it uses less digits than its factorization.

12131379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103706 (or 103703 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 12131379 is about 3483.0129198727. The cubic root of 12131379 is about 229.7753256530.

The spelling of 12131379 in words is "twelve million, one hundred thirty-one thousand, three hundred seventy-nine".