13124613621 has 16 divisors (see below), whose sum is σ = 20131862528. Its totient is φ = 7450110000.

The previous prime is 13124613613. The next prime is 13124613631. The reversal of 13124613621 is 12631642131.

It is not a de Polignac number, because 13124613621 - 2³ = 13124613613 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 (13124613611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2066305 + ... + 2072646.

It is an arithmetic number, because the mean of its divisors is an integer number (1258241408).

Almost surely, 2^13124613621 is an apocalyptic number.

It is an amenable number.

13124613621 is a deficient number, since it is larger than the sum of its proper divisors (7007248907).

13124613621 is a wasteful number, since it uses less digits than its factorization.

13124613621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139112.

The product of its digits is 5184, while the sum is 30.

The spelling of 13124613621 in words is "thirteen billion, one hundred twenty-four million, six hundred thirteen thousand, six hundred twenty-one".