313031321113 has 4 divisors (see below), whose sum is σ = 357750081280. Its totient is φ = 268312560948.

The previous prime is 313031321101. The next prime is 313031321201. The reversal of 313031321113 is 311123130313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 311123130313 = 7297 ⋅42637129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313031321113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313034321113) 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, 22359380073 + ... + 22359380086.

It is an arithmetic number, because the mean of its divisors is an integer number (89437520320).

Almost surely, 2^313031321113 is an apocalyptic number.

It is an amenable number.

313031321113 is a deficient number, since it is larger than the sum of its proper divisors (44718760167).

313031321113 is an equidigital number, since it uses as much as digits as its factorization.

313031321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44718760166.

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

Adding to 313031321113 its reverse (311123130313), we get a palindrome (624154451426).

The spelling of 313031321113 in words is "three hundred thirteen billion, thirty-one million, three hundred twenty-one thousand, one hundred thirteen".