12873326931 has 24 divisors (see below), whose sum is σ = 18997602624. Its totient is φ = 8396449920.

The previous prime is 12873326881. The next prime is 12873326981. The reversal of 12873326931 is 13962337821.

12873326931 is a `hidden beast` number, since 1 + 287 + 332 + 6 + 9 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (12873326881) and next prime (12873326981).

It is not a de Polignac number, because 12873326931 - 2¹¹ = 12873324883 is a prime.

It is a super-2 number, since 2×12873326931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12873326981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1754751 + ... + 1762071.

It is an arithmetic number, because the mean of its divisors is an integer number (791566776).

Almost surely, 2^12873326931 is an apocalyptic number.

12873326931 is a deficient number, since it is larger than the sum of its proper divisors (6124275693).

12873326931 is a wasteful number, since it uses less digits than its factorization.

12873326931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11531 (or 11528 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The spelling of 12873326931 in words is "twelve billion, eight hundred seventy-three million, three hundred twenty-six thousand, nine hundred thirty-one".