131313321013 has 4 divisors (see below), whose sum is σ = 150072366880. Its totient is φ = 112554275148.

The previous prime is 131313320981. The next prime is 131313321077. The reversal of 131313321013 is 310123313131.

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 not a de Polignac number, because 131313321013 - 2⁵ = 131313320981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313321313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9379522923 + ... + 9379522936.

It is an arithmetic number, because the mean of its divisors is an integer number (37518091720).

Almost surely, 2^131313321013 is an apocalyptic number.

It is an amenable number.

131313321013 is a deficient number, since it is larger than the sum of its proper divisors (18759045867).

131313321013 is an equidigital number, since it uses as much as digits as its factorization.

131313321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18759045866.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 131313321013 its reverse (310123313131), we get a palindrome (441436634144).

The spelling of 131313321013 in words is "one hundred thirty-one billion, three hundred thirteen million, three hundred twenty-one thousand, thirteen".