13133113231 has 24 divisors (see below), whose sum is σ = 15420903120. Its totient is φ = 11151504000.

The previous prime is 13133113223. The next prime is 13133113237. The reversal of 13133113231 is 13231133131.

It is not a de Polignac number, because 13133113231 - 2³ = 13133113223 is a prime.

It is a super-2 number, since 2×13133113231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133113237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3546681 + ... + 3550381.

It is an arithmetic number, because the mean of its divisors is an integer number (642537630).

Almost surely, 2^13133113231 is an apocalyptic number.

13133113231 is a deficient number, since it is larger than the sum of its proper divisors (2287789889).

13133113231 is a wasteful number, since it uses less digits than its factorization.

13133113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375 (or 4368 counting only the distinct ones).

The product of its digits is 486, while the sum is 22.

Adding to 13133113231 its reverse (13231133131), we get a palindrome (26364246362).

The spelling of 13133113231 in words is "thirteen billion, one hundred thirty-three million, one hundred thirteen thousand, two hundred thirty-one".