120023100 has 72 divisors (see below), whose sum is σ = 385860720. Its totient is φ = 32005440.

The previous prime is 120023093. The next prime is 120023147. The reversal of 120023100 is 1320021.

It is a happy number.

It is a super-2 number, since 2×120023100² = 28811089067220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19527 + ... + 24926.

Almost surely, 2^120023100 is an apocalyptic number.

120023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120023100 is an abundant number, since it is smaller than the sum of its proper divisors (265837620).

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

120023100 is a wasteful number, since it uses less digits than its factorization.

120023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44476 (or 44463 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 120023100 is about 10955.5054652900. The cubic root of 120023100 is about 493.2740625571.

Adding to 120023100 its reverse (1320021), we get a palindrome (121343121).

The spelling of 120023100 in words is "one hundred twenty million, twenty-three thousand, one hundred".