31021033012013 has 48 divisors (see below), whose sum is σ = 35420856387840. Its totient is φ = 27130971120000.

The previous prime is 31021033012003. The next prime is 31021033012063.

31021033012013 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31021033012013 - 2¹² = 31021033007917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31021033012003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79645523 + ... + 80034063.

It is an arithmetic number, because the mean of its divisors is an integer number (737934508080).

Almost surely, 2^{31021033012013} is an apocalyptic number.

It is an amenable number.

31021033012013 is a deficient number, since it is larger than the sum of its proper divisors (4399823375827).

31021033012013 is a wasteful number, since it uses less digits than its factorization.

31021033012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388850 (or 388839 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

It can be divided in two parts, 3102103 and 3012013, that added together give a palindrome (6114116).

The spelling of 31021033012013 in words is "thirty-one trillion, twenty-one billion, thirty-three million, twelve thousand, thirteen".