20113022120 has 128 divisors (see below), whose sum is σ = 47113228800. Its totient is φ = 7723372800.

The previous prime is 20113022117. The next prime is 20113022159. The reversal of 20113022120 is 2122031102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20113022095 and 20113022104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20713235 + ... + 20714205.

It is an arithmetic number, because the mean of its divisors is an integer number (368072100).

Almost surely, 2^20113022120 is an apocalyptic number.

20113022120 is a gapful number since it is divisible by the number (20) 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 20113022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23556614400).

20113022120 is an abundant number, since it is smaller than the sum of its proper divisors (27000206680).

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

20113022120 is a wasteful number, since it uses less digits than its factorization.

20113022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20113022120 its reverse (2122031102), we get a palindrome (22235053222).

The spelling of 20113022120 in words is "twenty billion, one hundred thirteen million, twenty-two thousand, one hundred twenty".