31313100113313 has 16 divisors (see below), whose sum is σ = 44208415463616. Its totient is φ = 19646686080000.

The previous prime is 31313100113287. The next prime is 31313100113359. The reversal of 31313100113313 is 31331100131313.

It is not a de Polignac number, because 31313100113313 - 2³⁶ = 31244380636577 is a prime.

It is a super-2 number, since 2×31313100113313² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31313100113413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10355656 + ... + 13033257.

It is an arithmetic number, because the mean of its divisors is an integer number (2763025966476).

Almost surely, 2^{31313100113313} is an apocalyptic number.

It is an amenable number.

31313100113313 is a deficient number, since it is larger than the sum of its proper divisors (12895315350303).

31313100113313 is a wasteful number, since it uses less digits than its factorization.

31313100113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23415184.

The product of its (nonzero) digits is 729, while the sum is 24.

Adding to 31313100113313 its reverse (31331100131313), we get a palindrome (62644200244626).

The spelling of 31313100113313 in words is "thirty-one trillion, three hundred thirteen billion, one hundred million, one hundred thirteen thousand, three hundred thirteen".