2031312132013 has 4 divisors (see below), whose sum is σ = 2034016942528. Its totient is φ = 2028607321500.

The previous prime is 2031312131977. The next prime is 2031312132043. The reversal of 2031312132013 is 3102312131302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031312132013 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 (2031312132043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352404131 + ... + 1352405632.

It is an arithmetic number, because the mean of its divisors is an integer number (508504235632).

Almost surely, 2^{2031312132013} is an apocalyptic number.

It is an amenable number.

2031312132013 is a deficient number, since it is larger than the sum of its proper divisors (2704810515).

2031312132013 is an equidigital number, since it uses as much as digits as its factorization.

2031312132013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704810514.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2031312132013 its reverse (3102312131302), we get a palindrome (5133624263315).

The spelling of 2031312132013 in words is "two trillion, thirty-one billion, three hundred twelve million, one hundred thirty-two thousand, thirteen".