13831137021 has 16 divisors (see below), whose sum is σ = 19893283200. Its totient is φ = 8497245120.

The previous prime is 13831136989. The next prime is 13831137031. The reversal of 13831137021 is 12073113831.

It is not a de Polignac number, because 13831137021 - 2⁵ = 13831136989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13831137021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831137031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272670 + ... + 319391.

It is an arithmetic number, because the mean of its divisors is an integer number (1243330200).

Almost surely, 2^13831137021 is an apocalyptic number.

It is an amenable number.

13831137021 is a deficient number, since it is larger than the sum of its proper divisors (6062146179).

13831137021 is a wasteful number, since it uses less digits than its factorization.

13831137021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592676.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 13831137021 in words is "thirteen billion, eight hundred thirty-one million, one hundred thirty-seven thousand, twenty-one".