1310131313 has 4 divisors (see below), whose sum is σ = 1367093568. Its totient is φ = 1253169060.

The previous prime is 1310131307. The next prime is 1310131349. The reversal of 1310131313 is 3131310131.

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 a de Polignac number, because none of the positive numbers 2^k-1310131313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310131291 and 1310131300.

It is not an unprimeable number, because it can be changed into a prime (1310134313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28481093 + ... + 28481138.

It is an arithmetic number, because the mean of its divisors is an integer number (341773392).

Almost surely, 2^1310131313 is an apocalyptic number.

It is an amenable number.

1310131313 is a deficient number, since it is larger than the sum of its proper divisors (56962255).

1310131313 is an equidigital number, since it uses as much as digits as its factorization.

1310131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56962254.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1310131313 is about 36195.7361162886. The cubic root of 1310131313 is about 1094.2207400930.

Adding to 1310131313 its reverse (3131310131), we get a palindrome (4441441444).

The spelling of 1310131313 in words is "one billion, three hundred ten million, one hundred thirty-one thousand, three hundred thirteen".