13020320112 has 80 divisors (see below), whose sum is σ = 34190073600. Its totient is φ = 4268791296.

The previous prime is 13020320099. The next prime is 13020320119. The reversal of 13020320112 is 21102302031.

It is a junction number, because it is equal to n+sod(n) for n = 13020320091 and 13020320100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020320119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2386764 + ... + 2392212.

It is an arithmetic number, because the mean of its divisors is an integer number (427375920).

Almost surely, 2^13020320112 is an apocalyptic number.

13020320112 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 13020320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17095036800).

13020320112 is an abundant number, since it is smaller than the sum of its proper divisors (21169753488).

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

13020320112 is a wasteful number, since it uses less digits than its factorization.

13020320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270 (or 6264 counting only the distinct ones).

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

Adding to 13020320112 its reverse (21102302031), we get a palindrome (34122622143).

The spelling of 13020320112 in words is "thirteen billion, twenty million, three hundred twenty thousand, one hundred twelve".