2031012331013 has 8 divisors (see below), whose sum is σ = 2150497405080. Its totient is φ = 1911528785920.

The previous prime is 2031012330989. The next prime is 2031012331021. The reversal of 2031012331013 is 3101332101302.

It can be written as a sum of positive squares in 4 ways, for example, as 876541592644 + 1154470738369 = 936238^2 + 1074463^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2031012331013 is a prime.

It is a super-2 number, since 2×2031012331013² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031012331813) 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, 3450983 + ... + 3996411.

It is an arithmetic number, because the mean of its divisors is an integer number (268812175635).

Almost surely, 2^{2031012331013} is an apocalyptic number.

It is an amenable number.

2031012331013 is a deficient number, since it is larger than the sum of its proper divisors (119485074067).

2031012331013 is a wasteful number, since it uses less digits than its factorization.

2031012331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764487.

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

Adding to 2031012331013 its reverse (3101332101302), we get a palindrome (5132344432315).

The spelling of 2031012331013 in words is "two trillion, thirty-one billion, twelve million, three hundred thirty-one thousand, thirteen".