320111120120 has 128 divisors (see below), whose sum is σ = 794248416000. Its totient is φ = 115148513280.

The previous prime is 320111120099. The next prime is 320111120183. The reversal of 320111120120 is 21021111023.

It is a super-2 number, since 2×320111120120² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320111120095 and 320111120104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15190151 + ... + 15211209.

It is an arithmetic number, because the mean of its divisors is an integer number (6205065750).

Almost surely, 2^320111120120 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 320111120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397124208000).

320111120120 is an abundant number, since it is smaller than the sum of its proper divisors (474137295880).

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

320111120120 is a wasteful number, since it uses less digits than its factorization.

320111120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21453 (or 21449 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 320111120120 its reverse (21021111023), we get a palindrome (341132231143).

The spelling of 320111120120 in words is "three hundred twenty billion, one hundred eleven million, one hundred twenty thousand, one hundred twenty".