13221020113 has 12 divisors (see below), whose sum is σ = 15456849600. Its totient is φ = 11275348392.

The previous prime is 13221020107. The next prime is 13221020177. The reversal of 13221020113 is 31102012231.

It is not a de Polignac number, because 13221020113 - 2⁵ = 13221020081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221050113) 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, 668181 + ... + 687682.

It is an arithmetic number, because the mean of its divisors is an integer number (1288070800).

Almost surely, 2^13221020113 is an apocalyptic number.

It is an amenable number.

13221020113 is a deficient number, since it is larger than the sum of its proper divisors (2235829487).

13221020113 is a wasteful number, since it uses less digits than its factorization.

13221020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356076 (or 1356069 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13221020113 its reverse (31102012231), we get a palindrome (44323032344).

The spelling of 13221020113 in words is "thirteen billion, two hundred twenty-one million, twenty thousand, one hundred thirteen".