12539396402031 has 16 divisors (see below), whose sum is σ = 16758531998208. Its totient is φ = 8339936760000.

The previous prime is 12539396401963. The next prime is 12539396402051. The reversal of 12539396402031 is 13020469393521.

It is not a de Polignac number, because 12539396402031 - 2³⁹ = 11989640588143 is a prime.

It is a super-2 number, since 2×12539396402031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12539396402051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5714211 + ... + 7598091.

It is an arithmetic number, because the mean of its divisors is an integer number (1047408249888).

Almost surely, 2^{12539396402031} is an apocalyptic number.

12539396402031 is a deficient number, since it is larger than the sum of its proper divisors (4219135596177).

12539396402031 is a wasteful number, since it uses less digits than its factorization.

12539396402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889102.

The product of its (nonzero) digits is 1049760, while the sum is 48.

The spelling of 12539396402031 in words is "twelve trillion, five hundred thirty-nine billion, three hundred ninety-six million, four hundred two thousand, thirty-one".