12811307933 has 16 divisors (see below), whose sum is σ = 13730959296. Its totient is φ = 11910662400.

The previous prime is 12811307863. The next prime is 12811307953. The reversal of 12811307933 is 33970311821.

It is not a de Polignac number, because 12811307933 - 2²² = 12807113629 is a prime.

It is a super-2 number, since 2×12811307933² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811307953) 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, 752210 + ... + 769052.

It is an arithmetic number, because the mean of its divisors is an integer number (858184956).

Almost surely, 2^12811307933 is an apocalyptic number.

It is an amenable number.

12811307933 is a deficient number, since it is larger than the sum of its proper divisors (919651363).

12811307933 is a wasteful number, since it uses less digits than its factorization.

12811307933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17404.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 12811307933 in words is "twelve billion, eight hundred eleven million, three hundred seven thousand, nine hundred thirty-three".