13213103131 has 4 divisors (see below), whose sum is σ = 13255317832. Its totient is φ = 13170888432.

The previous prime is 13213103117. The next prime is 13213103143. The reversal of 13213103131 is 13130131231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13213103131 - 2²⁷ = 13078885403 is a prime.

It is a super-2 number, since 2×13213103131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13213103099 and 13213103108.

It is not an unprimeable number, because it can be changed into a prime (13213103161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21106881 + ... + 21107506.

It is an arithmetic number, because the mean of its divisors is an integer number (3313829458).

Almost surely, 2^13213103131 is an apocalyptic number.

13213103131 is a deficient number, since it is larger than the sum of its proper divisors (42214701).

13213103131 is an equidigital number, since it uses as much as digits as its factorization.

13213103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42214700.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13213103131 its reverse (13130131231), we get a palindrome (26343234362).

The spelling of 13213103131 in words is "thirteen billion, two hundred thirteen million, one hundred three thousand, one hundred thirty-one".