13220312113 has 4 divisors (see below), whose sum is σ = 13250155248. Its totient is φ = 13190468980.

The previous prime is 13220312033. The next prime is 13220312129. The reversal of 13220312113 is 31121302231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220312113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220312213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14920903 + ... + 14921788.

It is an arithmetic number, because the mean of its divisors is an integer number (3312538812).

Almost surely, 2^13220312113 is an apocalyptic number.

It is an amenable number.

13220312113 is a deficient number, since it is larger than the sum of its proper divisors (29843135).

13220312113 is an equidigital number, since it uses as much as digits as its factorization.

13220312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29843134.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13220312113 its reverse (31121302231), we get a palindrome (44341614344).

The spelling of 13220312113 in words is "thirteen billion, two hundred twenty million, three hundred twelve thousand, one hundred thirteen".