131113201321013 has 4 divisors (see below), whose sum is σ = 131257758324480. Its totient is φ = 130968644317548.

The previous prime is 131113201321007. The next prime is 131113201321057. The reversal of 131113201321013 is 310123102311131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131113201321013 - 2⁸ = 131113201320757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131113201321013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113201321913) 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, 72278500373 + ... + 72278502186.

It is an arithmetic number, because the mean of its divisors is an integer number (32814439581120).

Almost surely, 2^{131113201321013} is an apocalyptic number.

It is an amenable number.

131113201321013 is a deficient number, since it is larger than the sum of its proper divisors (144557003467).

131113201321013 is an equidigital number, since it uses as much as digits as its factorization.

131113201321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144557003466.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131113201321013 its reverse (310123102311131), we get a palindrome (441236303632144).

The spelling of 131113201321013 in words is "one hundred thirty-one trillion, one hundred thirteen billion, two hundred one million, three hundred twenty-one thousand, thirteen".