13122100320 has 384 divisors, whose sum is σ = 49366195200. Its totient is φ = 2867208192.

The previous prime is 13122100273. The next prime is 13122100331. The reversal of 13122100320 is 2300122131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13122100320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7333986 + ... + 7335774.

It is an arithmetic number, because the mean of its divisors is an integer number (128557800).

Almost surely, 2^13122100320 is an apocalyptic number.

13122100320 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 13122100320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24683097600).

13122100320 is an abundant number, since it is smaller than the sum of its proper divisors (36244094880).

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

13122100320 is a wasteful number, since it uses less digits than its factorization.

13122100320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13122100320 its reverse (2300122131), we get a palindrome (15422222451).

The spelling of 13122100320 in words is "thirteen billion, one hundred twenty-two million, one hundred thousand, three hundred twenty".