100323120 has 160 divisors (see below), whose sum is σ = 335121408. Its totient is φ = 24735744.

The previous prime is 100323107. The next prime is 100323131. The reversal of 100323120 is 21323001.

It is a happy number.

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 = 100323096 and 100323105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273177 + ... + 273543.

Almost surely, 2^100323120 is an apocalyptic number.

100323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167560704).

100323120 is an abundant number, since it is smaller than the sum of its proper divisors (234798288).

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

100323120 is a wasteful number, since it uses less digits than its factorization.

100323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100323120 is about 10016.1429702256. The cubic root of 100323120 is about 464.6582759291.

Adding to 100323120 its reverse (21323001), we get a palindrome (121646121).

The spelling of 100323120 in words is "one hundred million, three hundred twenty-three thousand, one hundred twenty".