13231111153 has 4 divisors (see below), whose sum is σ = 14248888948. Its totient is φ = 12213333360.

The previous prime is 13231111133. The next prime is 13231111181. The reversal of 13231111153 is 35111113231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3297400929 + 9933710224 = 57423^2 + 99668^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231111153 - 2²⁵ = 13197556721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231111133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508888878 + ... + 508888903.

It is an arithmetic number, because the mean of its divisors is an integer number (3562222237).

Almost surely, 2^13231111153 is an apocalyptic number.

13231111153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13231111153 is a deficient number, since it is larger than the sum of its proper divisors (1017777795).

13231111153 is a wasteful number, since it uses less digits than its factorization.

13231111153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017777794.

The product of its digits is 270, while the sum is 22.

Adding to 13231111153 its reverse (35111113231), we get a palindrome (48342224384).

The spelling of 13231111153 in words is "thirteen billion, two hundred thirty-one million, one hundred eleven thousand, one hundred fifty-three".