13311220131 has 20 divisors (see below), whose sum is σ = 21692360184. Its totient is φ = 8067405600.

The previous prime is 13311220079. The next prime is 13311220147. The reversal of 13311220131 is 13102211331.

13311220131 is a `hidden beast` number, since 1 + 3 + 311 + 220 + 131 = 666.

It is not a de Polignac number, because 13311220131 - 2²³ = 13302831523 is a prime.

It is a super-2 number, since 2×13311220131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13311222131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7468930 + ... + 7470711.

Almost surely, 2^13311220131 is an apocalyptic number.

13311220131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13311220131 is a deficient number, since it is larger than the sum of its proper divisors (8381140053).

13311220131 is a wasteful number, since it uses less digits than its factorization.

13311220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14939664 (or 14939655 counting only the distinct ones).

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

Adding to 13311220131 its reverse (13102211331), we get a palindrome (26413431462).

The spelling of 13311220131 in words is "thirteen billion, three hundred eleven million, two hundred twenty thousand, one hundred thirty-one".