131031310313 has 4 divisors (see below), whose sum is σ = 131080150608. Its totient is φ = 130982470020.

The previous prime is 131031310309. The next prime is 131031310321. The reversal of 131031310313 is 313013130131.

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 131031310313 - 2² = 131031310309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131031310013) 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, 24416123 + ... + 24421488.

It is an arithmetic number, because the mean of its divisors is an integer number (32770037652).

Almost surely, 2^131031310313 is an apocalyptic number.

It is an amenable number.

131031310313 is a deficient number, since it is larger than the sum of its proper divisors (48840295).

131031310313 is an equidigital number, since it uses as much as digits as its factorization.

131031310313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48840294.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 131031310313 its reverse (313013130131), we get a palindrome (444044440444).

The spelling of 131031310313 in words is "one hundred thirty-one billion, thirty-one million, three hundred ten thousand, three hundred thirteen".