31013233221013 has 8 divisors (see below), whose sum is σ = 31697776050048. Its totient is φ = 30329719008864.

The previous prime is 31013233220941. The next prime is 31013233221023. The reversal of 31013233221013 is 31012233231013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013233221013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013233221023) 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, 257093256 + ... + 257213857.

It is an arithmetic number, because the mean of its divisors is an integer number (3962222006256).

Almost surely, 2^{31013233221013} is an apocalyptic number.

It is an amenable number.

31013233221013 is a deficient number, since it is larger than the sum of its proper divisors (684542829035).

31013233221013 is a wasteful number, since it uses less digits than its factorization.

31013233221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514308443.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31013233221013 its reverse (31012233231013), we get a palindrome (62025466452026).

The spelling of 31013233221013 in words is "thirty-one trillion, thirteen billion, two hundred thirty-three million, two hundred twenty-one thousand, thirteen".