12811234875 has 16 divisors (see below), whose sum is σ = 21317895456. Its totient is φ = 6832658400.

The previous prime is 12811234859. The next prime is 12811234897. The reversal of 12811234875 is 57843211821.

It is not a de Polignac number, because 12811234875 - 2⁴ = 12811234859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17081272 + ... + 17082021.

It is an arithmetic number, because the mean of its divisors is an integer number (1332368466).

Almost surely, 2^12811234875 is an apocalyptic number.

12811234875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12811234875 is a deficient number, since it is larger than the sum of its proper divisors (8506660581).

12811234875 is an equidigital number, since it uses as much as digits as its factorization.

12811234875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34163311 (or 34163301 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The spelling of 12811234875 in words is "twelve billion, eight hundred eleven million, two hundred thirty-four thousand, eight hundred seventy-five".