13321130112 has 96 divisors (see below), whose sum is σ = 38447807580. Its totient is φ = 4427071488.

The previous prime is 13321130099. The next prime is 13321130149. The reversal of 13321130112 is 21103112331.

It can be written as a sum of positive squares in 2 ways, for example, as 12675157056 + 645973056 = 112584^2 + 25416^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371068 + ... + 405380.

Almost surely, 2^13321130112 is an apocalyptic number.

13321130112 is a gapful number since it is divisible by the number (12) 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 13321130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19223903790).

13321130112 is an abundant number, since it is smaller than the sum of its proper divisors (25126677468).

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

13321130112 is a wasteful number, since it uses less digits than its factorization.

13321130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34670 (or 34655 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13321130112 its reverse (21103112331), we get a palindrome (34424242443).

The spelling of 13321130112 in words is "thirteen billion, three hundred twenty-one million, one hundred thirty thousand, one hundred twelve".