13220323111 has 12 divisors (see below), whose sum is σ = 13826659000. Its totient is φ = 12639535920.

The previous prime is 13220323069. The next prime is 13220323117. The reversal of 13220323111 is 11132302231.

It is not a de Polignac number, because 13220323111 - 2³³ = 4630388519 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 (13220323117) 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, 1449676 + ... + 1458766.

Almost surely, 2^13220323111 is an apocalyptic number.

13220323111 is a deficient number, since it is larger than the sum of its proper divisors (606335889).

13220323111 is an equidigital number, since it uses as much as digits as its factorization.

13220323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11886 (or 11863 counting only the distinct ones).

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

Adding to 13220323111 its reverse (11132302231), we get a palindrome (24352625342).

The spelling of 13220323111 in words is "thirteen billion, two hundred twenty million, three hundred twenty-three thousand, one hundred eleven".