31312044021313 has 64 divisors (see below), whose sum is σ = 35636634381312. Its totient is φ = 27268391854080.

The previous prime is 31312044021263. The next prime is 31312044021371.

31312044021313 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31312044021313 - 2⁹ = 31312044020801 is a prime.

It is a super-3 number, since 3×31312044021313³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31312044021113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2139816645 + ... + 2139831277.

It is an arithmetic number, because the mean of its divisors is an integer number (556822412208).

Almost surely, 2^{31312044021313} is an apocalyptic number.

It is an amenable number.

31312044021313 is a deficient number, since it is larger than the sum of its proper divisors (4324590359999).

31312044021313 is a wasteful number, since it uses less digits than its factorization.

31312044021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15274.

The product of its (nonzero) digits is 5184, while the sum is 28.

It can be divided in two parts, 3131204 and 4021313, that added together give a palindrome (7152517).

The spelling of 31312044021313 in words is "thirty-one trillion, three hundred twelve billion, forty-four million, twenty-one thousand, three hundred thirteen".