13321013231200 has 144 divisors (see below), whose sum is σ = 34506608716944. Its totient is φ = 5004228608000.

The previous prime is 13321013231179. The next prime is 13321013231237. The reversal of 13321013231200 is 213231012331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5302500 + ... + 7399900.

It is an arithmetic number, because the mean of its divisors is an integer number (239629227201).

Almost surely, 2^{13321013231200} is an apocalyptic number.

13321013231200 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 13321013231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17253304358472).

13321013231200 is an abundant number, since it is smaller than the sum of its proper divisors (21185595485744).

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

13321013231200 is a wasteful number, since it uses less digits than its factorization.

13321013231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097905 (or 2097892 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13321013231200 its reverse (213231012331), we get a palindrome (13534244243531).

The spelling of 13321013231200 in words is "thirteen trillion, three hundred twenty-one billion, thirteen million, two hundred thirty-one thousand, two hundred".