13321331200 has 120 divisors (see below), whose sum is σ = 33773583888. Its totient is φ = 5204398080.

The previous prime is 13321331173. The next prime is 13321331201. The reversal of 13321331200 is 213312331.

It is not an unprimeable number, because it can be changed into a prime (13321331201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538299 + ... + 562501.

Almost surely, 2^13321331200 is an apocalyptic number.

13321331200 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 13321331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16886791944).

13321331200 is an abundant number, since it is smaller than the sum of its proper divisors (20452252688).

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

13321331200 is an equidigital number, since it uses as much as digits as its factorization.

13321331200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24274 (or 24253 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13321331200 its reverse (213312331), we get a palindrome (13534643531).

The spelling of 13321331200 in words is "thirteen billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred".