13223223312 has 80 divisors (see below), whose sum is σ = 36807435840. Its totient is φ = 4066500096.

The previous prime is 13223223289. The next prime is 13223223323. The reversal of 13223223312 is 21332232231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460014 + ... + 1469042.

It is an arithmetic number, because the mean of its divisors is an integer number (460092948).

Almost surely, 2^13223223312 is an apocalyptic number.

13223223312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13223223312 is an abundant number, since it is smaller than the sum of its proper divisors (23584212528).

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

13223223312 is a wasteful number, since it uses less digits than its factorization.

13223223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400 (or 11394 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 13223223312 its reverse (21332232231), we get a palindrome (34555455543).

The spelling of 13223223312 in words is "thirteen billion, two hundred twenty-three million, two hundred twenty-three thousand, three hundred twelve".