13131650621 has 16 divisors (see below), whose sum is σ = 13438425600. Its totient is φ = 12828110400.

The previous prime is 13131650611. The next prime is 13131650639. The reversal of 13131650621 is 12605613131.

It is a cyclic number.

It is not a de Polignac number, because 13131650621 - 2²⁶ = 13064541757 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 (13131650611) 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, 9124820 + ... + 9126258.

It is an arithmetic number, because the mean of its divisors is an integer number (839901600).

Almost surely, 2^13131650621 is an apocalyptic number.

It is an amenable number.

13131650621 is a deficient number, since it is larger than the sum of its proper divisors (306774979).

13131650621 is a wasteful number, since it uses less digits than its factorization.

13131650621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 13131650621 in words is "thirteen billion, one hundred thirty-one million, six hundred fifty thousand, six hundred twenty-one".