13113324512 has 96 divisors (see below), whose sum is σ = 27755384832. Its totient is φ = 6082712064.

The previous prime is 13113324491. The next prime is 13113324529. The reversal of 13113324512 is 21542331131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12063233 + ... + 12064319.

It is an arithmetic number, because the mean of its divisors is an integer number (289118592).

Almost surely, 2^13113324512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13113324512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13877692416).

13113324512 is an abundant number, since it is smaller than the sum of its proper divisors (14642060320).

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

13113324512 is a wasteful number, since it uses less digits than its factorization.

13113324512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1592 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

Adding to 13113324512 its reverse (21542331131), we get a palindrome (34655655643).

The spelling of 13113324512 in words is "thirteen billion, one hundred thirteen million, three hundred twenty-four thousand, five hundred twelve".