123110232120200 has 96 divisors (see below), whose sum is σ = 308510095730760. Its totient is φ = 45417595084800.

The previous prime is 123110232120163. The next prime is 123110232120203. The reversal of 123110232120200 is 2021232011321.

It can be written as a sum of positive squares in 12 ways, for example, as 36791527622404 + 86318704497796 = 6065602^2 + 9290786^2 .

It is a super-2 number, since 2×123110232120200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (123110232120203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16976009 + ... + 23117208.

Almost surely, 2^{123110232120200} is an apocalyptic number.

123110232120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123110232120200 is an abundant number, since it is smaller than the sum of its proper divisors (185399863610560).

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

123110232120200 is a wasteful number, since it uses less digits than its factorization.

123110232120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40094427 (or 40094418 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123110232120200 its reverse (2021232011321), we get a palindrome (125131464131521).

The spelling of 123110232120200 in words is "one hundred twenty-three trillion, one hundred ten billion, two hundred thirty-two million, one hundred twenty thousand, two hundred".