12942431 has 8 divisors (see below), whose sum is σ = 13214928. Its totient is φ = 12672000.

The previous prime is 12942427. The next prime is 12942467. The reversal of 12942431 is 13424921.

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 12942431 - 2² = 12942427 is a prime.

It is a super-2 number, since 2×12942431² = 335013040379522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12942431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12942481) 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, 19871 + ... + 20511.

It is an arithmetic number, because the mean of its divisors is an integer number (1651866).

Almost surely, 2^12942431 is an apocalyptic number.

12942431 is a deficient number, since it is larger than the sum of its proper divisors (272497).

12942431 is an equidigital number, since it uses as much as digits as its factorization.

12942431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its digits is 1728, while the sum is 26.

The square root of 12942431 is about 3597.5590335671. The cubic root of 12942431 is about 234.7858680175.

The spelling of 12942431 in words is "twelve million, nine hundred forty-two thousand, four hundred thirty-one".