13513103131 has 4 divisors (see below), whose sum is σ = 14741567064. Its totient is φ = 12284639200.

The previous prime is 13513103119. The next prime is 13513103137. The reversal of 13513103131 is 13130131531.

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 13513103131 - 2⁷ = 13513103003 is a prime.

It is a super-3 number, since 3×13513103131³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13513103137) 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, 614231950 + ... + 614231971.

It is an arithmetic number, because the mean of its divisors is an integer number (3685391766).

Almost surely, 2^13513103131 is an apocalyptic number.

13513103131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13513103131 is a deficient number, since it is larger than the sum of its proper divisors (1228463933).

13513103131 is a wasteful number, since it uses less digits than its factorization.

13513103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228463932.

The product of its (nonzero) digits is 405, while the sum is 22.

Adding to 13513103131 its reverse (13130131531), we get a palindrome (26643234662).

The spelling of 13513103131 in words is "thirteen billion, five hundred thirteen million, one hundred three thousand, one hundred thirty-one".