13213222320 has 160 divisors (see below), whose sum is σ = 42088806144. Its totient is φ = 3427200000.

The previous prime is 13213222271. The next prime is 13213222357. The reversal of 13213222320 is 2322231231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2587770 + ... + 2592870.

Almost surely, 2^13213222320 is an apocalyptic number.

13213222320 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 13213222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21044403072).

13213222320 is an abundant number, since it is smaller than the sum of its proper divisors (28875583824).

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

13213222320 is a wasteful number, since it uses less digits than its factorization.

13213222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411 (or 5405 counting only the distinct ones).

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

Adding to 13213222320 its reverse (2322231231), we get a palindrome (15535453551).

The spelling of 13213222320 in words is "thirteen billion, two hundred thirteen million, two hundred twenty-two thousand, three hundred twenty".