13223122320 has 40 divisors (see below), whose sum is σ = 40991679936. Its totient is φ = 3526165888.

The previous prime is 13223122307. The next prime is 13223122321. The reversal of 13223122320 is 2322132231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (13223122321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27547932 + ... + 27548411.

Almost surely, 2^13223122320 is an apocalyptic number.

13223122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13223122320 is an abundant number, since it is smaller than the sum of its proper divisors (27768557616).

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

13223122320 is a wasteful number, since it uses less digits than its factorization.

13223122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55096359 (or 55096353 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13223122320 its reverse (2322132231), we get a palindrome (15545254551).

The spelling of 13223122320 in words is "thirteen billion, two hundred twenty-three million, one hundred twenty-two thousand, three hundred twenty".