13320123312 has 40 divisors (see below), whose sum is σ = 34425495040. Its totient is φ = 4438082880.

The previous prime is 13320123253. The next prime is 13320123317. The reversal of 13320123312 is 21332102331.

It is not an unprimeable number, because it can be changed into a prime (13320123317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50889 + ... + 170967.

It is an arithmetic number, because the mean of its divisors is an integer number (860637376).

Almost surely, 2^13320123312 is an apocalyptic number.

13320123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13320123312 is an abundant number, since it is smaller than the sum of its proper divisors (21105371728).

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

13320123312 is a wasteful number, since it uses less digits than its factorization.

13320123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122401 (or 122395 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13320123312 its reverse (21332102331), we get a palindrome (34652225643).

The spelling of 13320123312 in words is "thirteen billion, three hundred twenty million, one hundred twenty-three thousand, three hundred twelve".