100110120020 has 24 divisors (see below), whose sum is σ = 211012792200. Its totient is φ = 39895183232.

The previous prime is 100110119983. The next prime is 100110120023. The reversal of 100110120020 is 20021011001.

It can be written as a sum of positive squares in 4 ways, for example, as 3037993924 + 97072126096 = 55118^2 + 311564^2 .

It is a super-2 number, since 2×100110120020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100110120023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9298535 + ... + 9309294.

It is an arithmetic number, because the mean of its divisors is an integer number (8792199675).

Almost surely, 2^100110120020 is an apocalyptic number.

100110120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100110120020 is an abundant number, since it is smaller than the sum of its proper divisors (110902672180).

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

100110120020 is a wasteful number, since it uses less digits than its factorization.

100110120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18608107 (or 18608105 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100110120020 its reverse (20021011001), we get a palindrome (120131131021).

The spelling of 100110120020 in words is "one hundred billion, one hundred ten million, one hundred twenty thousand, twenty".