123379931 has 8 divisors (see below), whose sum is σ = 130767984. Its totient is φ = 116006400.

The previous prime is 123379913. The next prime is 123379937. The reversal of 123379931 is 139973321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123379931 - 2¹⁰ = 123378907 is a prime.

It is a super-2 number, since 2×123379931² = 30445214747129522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123379937) 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, 17396 + ... + 23438.

It is an arithmetic number, because the mean of its divisors is an integer number (16345998).

Almost surely, 2^123379931 is an apocalyptic number.

123379931 is a deficient number, since it is larger than the sum of its proper divisors (7388053).

123379931 is a wasteful number, since it uses less digits than its factorization.

123379931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261.

The product of its digits is 30618, while the sum is 38.

The square root of 123379931 is about 11107.6519120829. The cubic root of 123379931 is about 497.8305082257.

The spelling of 123379931 in words is "one hundred twenty-three million, three hundred seventy-nine thousand, nine hundred thirty-one".