13231312135 has 8 divisors (see below), whose sum is σ = 15927663456. Its totient is φ = 10551657120.

The previous prime is 13231312103. The next prime is 13231312163. The reversal of 13231312135 is 53121313231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13231312135 - 2⁵ = 13231312103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4172331 + ... + 4175500.

It is an arithmetic number, because the mean of its divisors is an integer number (1990957932).

Almost surely, 2^13231312135 is an apocalyptic number.

13231312135 is a deficient number, since it is larger than the sum of its proper divisors (2696351321).

13231312135 is an equidigital number, since it uses as much as digits as its factorization.

13231312135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8348153.

The product of its digits is 1620, while the sum is 25.

Adding to 13231312135 its reverse (53121313231), we get a palindrome (66352625366).

The spelling of 13231312135 in words is "thirteen billion, two hundred thirty-one million, three hundred twelve thousand, one hundred thirty-five".