100321110120 has 128 divisors (see below), whose sum is σ = 375227043840. Its totient is φ = 20845943040.

The previous prime is 100321110103. The next prime is 100321110157. The reversal of 100321110120 is 21011123001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100321110096 and 100321110105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5419392 + ... + 5437871.

It is an arithmetic number, because the mean of its divisors is an integer number (2931461280).

Almost surely, 2^100321110120 is an apocalyptic number.

100321110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100321110120 is an abundant number, since it is smaller than the sum of its proper divisors (274905933720).

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

100321110120 is a wasteful number, since it uses less digits than its factorization.

100321110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10857295 (or 10857291 counting only the distinct ones).

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

Adding to 100321110120 its reverse (21011123001), we get a palindrome (121332233121).

The spelling of 100321110120 in words is "one hundred billion, three hundred twenty-one million, one hundred ten thousand, one hundred twenty".