13319090920 has 16 divisors (see below), whose sum is σ = 29967954660. Its totient is φ = 5327636352.

The previous prime is 13319090909. The next prime is 13319090951. The reversal of 13319090920 is 2909091331.

It can be written as a sum of positive squares in 2 ways, for example, as 13293628804 + 25462116 = 115298^2 + 5046^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13319090920.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166488597 + ... + 166488676.

Almost surely, 2^13319090920 is an apocalyptic number.

13319090920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13319090920 is an abundant number, since it is smaller than the sum of its proper divisors (16648863740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13319090920 is a wasteful number, since it uses less digits than its factorization.

13319090920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332977284 (or 332977280 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 37.

The spelling of 13319090920 in words is "thirteen billion, three hundred nineteen million, ninety thousand, nine hundred twenty".