23100120 has 128 divisors (see below), whose sum is σ = 78321600. Its totient is φ = 6054912.

The previous prime is 23100109. The next prime is 23100149. The reversal of 23100120 is 2100132.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 78694 + ... + 78986.

Almost surely, 2^23100120 is an apocalyptic number.

23100120 is a gapful number since it is divisible by the number (20) 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 23100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39160800).

23100120 is an abundant number, since it is smaller than the sum of its proper divisors (55221480).

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

23100120 is a wasteful number, since it uses less digits than its factorization.

23100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 376 counting only the distinct ones).

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

The square root of 23100120 is about 4806.2584200186. The cubic root of 23100120 is about 284.7987498893.

Adding to 23100120 its product of nonzero digits (12), we get a palindrome (23100132).

Adding to 23100120 its reverse (2100132), we get a palindrome (25200252).

It can be divided in two parts, 23100 and 120, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 23100120 in words is "twenty-three million, one hundred thousand, one hundred twenty".