113020120320 has 144 divisors (see below), whose sum is σ = 361122898752. Its totient is φ = 30124933120.

The previous prime is 113020120319. The next prime is 113020120321. The reversal of 113020120320 is 23021020311.

It is an interprime number because it is at equal distance from previous prime (113020120319) and next prime (113020120321).

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 113020120320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113020120321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10566175 + ... + 10576865.

It is an arithmetic number, because the mean of its divisors is an integer number (2507797908).

Almost surely, 2^113020120320 is an apocalyptic number.

113020120320 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 113020120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180561449376).

113020120320 is an abundant number, since it is smaller than the sum of its proper divisors (248102778432).

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

113020120320 is a wasteful number, since it uses less digits than its factorization.

113020120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13468 (or 13454 counting only the distinct ones).

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

Adding to 113020120320 its reverse (23021020311), we get a palindrome (136041140631).

The spelling of 113020120320 in words is "one hundred thirteen billion, twenty million, one hundred twenty thousand, three hundred twenty".