13231331167 has 4 divisors (see below), whose sum is σ = 13417688016. Its totient is φ = 13044974320.

The previous prime is 13231331153. The next prime is 13231331213. The reversal of 13231331167 is 76113313231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76113313231 = 22283 ⋅3415757.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231331167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231331117) 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, 93178318 + ... + 93178459.

It is an arithmetic number, because the mean of its divisors is an integer number (3354422004).

Almost surely, 2^13231331167 is an apocalyptic number.

13231331167 is a deficient number, since it is larger than the sum of its proper divisors (186356849).

13231331167 is an equidigital number, since it uses as much as digits as its factorization.

13231331167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186356848.

The product of its digits is 6804, while the sum is 31.

Adding to 13231331167 its reverse (76113313231), we get a palindrome (89344644398).

The spelling of 13231331167 in words is "thirteen billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred sixty-seven".