13000120331 has 12 divisors (see below), whose sum is σ = 14420498400. Its totient is φ = 11709854640.

The previous prime is 13000120313. The next prime is 13000120339. The reversal of 13000120331 is 13302100031.

It is not a de Polignac number, because 13000120331 - 2³⁰ = 11926378507 is a prime.

It is a super-2 number, since 2×13000120331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13000120339) 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, 479651 + ... + 506028.

It is an arithmetic number, because the mean of its divisors is an integer number (1201708200).

Almost surely, 2^13000120331 is an apocalyptic number.

13000120331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13000120331 is a deficient number, since it is larger than the sum of its proper divisors (1420378069).

13000120331 is a wasteful number, since it uses less digits than its factorization.

13000120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985810 (or 985799 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13000120331 its reverse (13302100031), we get a palindrome (26302220362).

It can be divided in two parts, 13000 and 120331, that added together give a palindrome (133331).

The spelling of 13000120331 in words is "thirteen billion, one hundred twenty thousand, three hundred thirty-one".