100123221231120 has 160 divisors (see below), whose sum is σ = 318707194291200. Its totient is φ = 25992165791232.

The previous prime is 100123221231119. The next prime is 100123221231127. The reversal of 100123221231120 is 21132122321001.

It is not an unprimeable number, because it can be changed into a prime (100123221231127) by changing a digit.

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, 32866030 + ... + 35782989.

It is an arithmetic number, because the mean of its divisors is an integer number (1991919964320).

Almost surely, 2^{100123221231120} is an apocalyptic number.

100123221231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100123221231120 is an abundant number, since it is smaller than the sum of its proper divisors (218583973060080).

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

100123221231120 is a wasteful number, since it uses less digits than its factorization.

100123221231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68649197 (or 68649191 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 100123221231120 its reverse (21132122321001), we get a palindrome (121255343552121).

The spelling of 100123221231120 in words is "one hundred trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred twenty".