13220113131 has 12 divisors (see below), whose sum is σ = 19097998920. Its totient is φ = 8812356480.

The previous prime is 13220113117. The next prime is 13220113157. The reversal of 13220113131 is 13131102231.

It is not a de Polignac number, because 13220113131 - 2⁵ = 13220113099 is a prime.

It is a super-2 number, since 2×13220113131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13220113111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3910 + ... + 162651.

It is an arithmetic number, because the mean of its divisors is an integer number (1591499910).

Almost surely, 2^13220113131 is an apocalyptic number.

13220113131 is a deficient number, since it is larger than the sum of its proper divisors (5877885789).

13220113131 is a wasteful number, since it uses less digits than its factorization.

13220113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175386 (or 175383 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13220113131 its reverse (13131102231), we get a palindrome (26351215362).

The spelling of 13220113131 in words is "thirteen billion, two hundred twenty million, one hundred thirteen thousand, one hundred thirty-one".