13223232320 has 28 divisors (see below), whose sum is σ = 31487822724. Its totient is φ = 5289292800.

The previous prime is 13223232317. The next prime is 13223232331. The reversal of 13223232320 is 2323232231.

It can be written as a sum of positive squares in 2 ways, for example, as 7696201984 + 5527030336 = 87728^2 + 74344^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20660981 + ... + 20661620.

Almost surely, 2^13223232320 is an apocalyptic number.

13223232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13223232320 is an abundant number, since it is smaller than the sum of its proper divisors (18264590404).

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

13223232320 is an equidigital number, since it uses as much as digits as its factorization.

13223232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41322618 (or 41322608 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 13223232320 its reverse (2323232231), we get a palindrome (15546464551).

The spelling of 13223232320 in words is "thirteen billion, two hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty".