31313013323313 has 8 divisors (see below), whose sum is σ = 41752087415776. Its totient is φ = 20874640723200.

The previous prime is 31313013323299. The next prime is 31313013323321. The reversal of 31313013323313 is 31332331031313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31313013323313 - 2²⁰ = 31313012274737 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 (31313013323413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175268923 + ... + 175447488.

It is an arithmetic number, because the mean of its divisors is an integer number (5219010926972).

Almost surely, 2^{31313013323313} is an apocalyptic number.

It is an amenable number.

31313013323313 is a deficient number, since it is larger than the sum of its proper divisors (10439074092463).

31313013323313 is a wasteful number, since it uses less digits than its factorization.

31313013323313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350746175.

The product of its (nonzero) digits is 13122, while the sum is 30.

Adding to 31313013323313 its reverse (31332331031313), we get a palindrome (62645344354626).

The spelling of 31313013323313 in words is "thirty-one trillion, three hundred thirteen billion, thirteen million, three hundred twenty-three thousand, three hundred thirteen".