110031120020 has 192 divisors, whose sum is σ = 260406558720. Its totient is φ = 38853416448.

The previous prime is 110031120019. The next prime is 110031120083. The reversal of 110031120020 is 20021130011.

It is a junction number, because it is equal to n+sod(n) for n = 110031119983 and 110031120010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113785577 + ... + 113786543.

It is an arithmetic number, because the mean of its divisors is an integer number (1356284160).

Almost surely, 2^110031120020 is an apocalyptic number.

110031120020 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 110031120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130203279360).

110031120020 is an abundant number, since it is smaller than the sum of its proper divisors (150375438700).

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

110031120020 is a wasteful number, since it uses less digits than its factorization.

110031120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 110031120020 its reverse (20021130011), we get a palindrome (130052250031).

Subtracting from 110031120020 its reverse (20021130011), we obtain a palindrome (90009990009).

The spelling of 110031120020 in words is "one hundred ten billion, thirty-one million, one hundred twenty thousand, twenty".