13320031013031 has 12 divisors (see below), whose sum is σ = 18066161008952. Its totient is φ = 8729511843504.

The previous prime is 13320031013021. The next prime is 13320031013063. The reversal of 13320031013031 is 13031013002331.

It is a de Polignac number, because none of the positive numbers 2^k-13320031013031 is a prime.

It is a super-2 number, since 2×13320031013031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13320031012989 and 13320031013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320031013021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637738816 + ... + 637759701.

Almost surely, 2^{13320031013031} is an apocalyptic number.

13320031013031 is a deficient number, since it is larger than the sum of its proper divisors (4746129995921).

13320031013031 is an equidigital number, since it uses as much as digits as its factorization.

13320031013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275498638 (or 1275498579 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13320031013031 its reverse (13031013002331), we get a palindrome (26351044015362).

The spelling of 13320031013031 in words is "thirteen trillion, three hundred twenty billion, thirty-one million, thirteen thousand, thirty-one".