12393031 has 6 divisors (see below), whose sum is σ = 14416440. Its totient is φ = 10622556.

The previous prime is 12393019. The next prime is 12393047. The reversal of 12393031 is 13039321.

It is not a de Polignac number, because 12393031 - 2⁹ = 12392519 is a prime.

It is a super-2 number, since 2×12393031² = 307174434733922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12392993 and 12393011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12393001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126411 + ... + 126508.

It is an arithmetic number, because the mean of its divisors is an integer number (2402740).

Almost surely, 2^12393031 is an apocalyptic number.

12393031 is a deficient number, since it is larger than the sum of its proper divisors (2023409).

12393031 is an equidigital number, since it uses as much as digits as its factorization.

12393031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252933 (or 252926 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 12393031 is about 3520.3737017538. The cubic root of 12393031 is about 231.4155361141.

The spelling of 12393031 in words is "twelve million, three hundred ninety-three thousand, thirty-one".