13220112320 has 56 divisors (see below), whose sum is σ = 31551792624. Its totient is φ = 5276051456.

The previous prime is 13220112319. The next prime is 13220112349. The reversal of 13220112320 is 2321102231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95132 + ... + 188388.

Almost surely, 2^13220112320 is an apocalyptic number.

13220112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13220112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15775896312).

13220112320 is an abundant number, since it is smaller than the sum of its proper divisors (18331680304).

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

13220112320 is an equidigital number, since it uses as much as digits as its factorization.

13220112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93717 (or 93707 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13220112320 its reverse (2321102231), we get a palindrome (15541214551).

The spelling of 13220112320 in words is "thirteen billion, two hundred twenty million, one hundred twelve thousand, three hundred twenty".