13112112133 has 16 divisors (see below), whose sum is σ = 13812479856. Its totient is φ = 12430748160.

The previous prime is 13112112127. The next prime is 13112112149. The reversal of 13112112133 is 33121121131.

It can be written as a sum of positive squares in 8 ways, for example, as 348083649 + 12764028484 = 18657^2 + 112978^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112112133 - 2²⁹ = 12575241221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13112112133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112112103) 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, 1288935 + ... + 1299067.

It is an arithmetic number, because the mean of its divisors is an integer number (863279991).

Almost surely, 2^13112112133 is an apocalyptic number.

It is an amenable number.

13112112133 is a deficient number, since it is larger than the sum of its proper divisors (700367723).

13112112133 is a wasteful number, since it uses less digits than its factorization.

13112112133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064.

The product of its digits is 108, while the sum is 19.

Adding to 13112112133 its reverse (33121121131), we get a palindrome (46233233264).

The spelling of 13112112133 in words is "thirteen billion, one hundred twelve million, one hundred twelve thousand, one hundred thirty-three".