31331133013313 has 16 divisors (see below), whose sum is σ = 35837174709504. Its totient is φ = 26832641955840.

The previous prime is 31331133013291. The next prime is 31331133013331. The reversal of 31331133013313 is 31331033113313.

It is not a de Polignac number, because 31331133013313 - 2⁶ = 31331133013249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31331133013393) 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, 40519748 + ... + 41285738.

It is an arithmetic number, because the mean of its divisors is an integer number (2239823419344).

Almost surely, 2^{31331133013313} is an apocalyptic number.

It is an amenable number.

31331133013313 is a deficient number, since it is larger than the sum of its proper divisors (4506041696191).

31331133013313 is a wasteful number, since it uses less digits than its factorization.

31331133013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770912.

The product of its (nonzero) digits is 6561, while the sum is 29.

Adding to 31331133013313 its reverse (31331033113313), we get a palindrome (62662166126626).

The spelling of 31331133013313 in words is "thirty-one trillion, three hundred thirty-one billion, one hundred thirty-three million, thirteen thousand, three hundred thirteen".