100242312120 has 48 divisors (see below), whose sum is σ = 325787515560. Its totient is φ = 26731283136.

The previous prime is 100242312119. The next prime is 100242312127. The reversal of 100242312120 is 21213242001.

It is a happy number.

100242312120 is a `hidden beast` number, since 100 + 2 + 423 + 121 + 20 = 666.

It is a super-2 number, since 2×100242312120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100242312093 and 100242312102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100242312127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139225074 + ... + 139225793.

Almost surely, 2^100242312120 is an apocalyptic number.

100242312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100242312120 is an abundant number, since it is smaller than the sum of its proper divisors (225545203440).

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

100242312120 is a wasteful number, since it uses less digits than its factorization.

100242312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278450884 (or 278450877 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 100242312120 its reverse (21213242001), we get a palindrome (121455554121).

The spelling of 100242312120 in words is "one hundred billion, two hundred forty-two million, three hundred twelve thousand, one hundred twenty".