120100023 has 8 divisors (see below), whose sum is σ = 177926000. Its totient is φ = 80066664.

The previous prime is 120100003. The next prime is 120100027. The reversal of 120100023 is 320001021.

It is a happy number.

It is not a de Polignac number, because 120100023 - 2¹⁶ = 120034487 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120099978 and 120100014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2224048 + ... + 2224101.

It is an arithmetic number, because the mean of its divisors is an integer number (22240750).

Almost surely, 2^120100023 is an apocalyptic number.

120100023 is a deficient number, since it is larger than the sum of its proper divisors (57825977).

120100023 is an equidigital number, since it uses as much as digits as its factorization.

120100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448158 (or 4448152 counting only the distinct ones).

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

The square root of 120100023 is about 10959.0156036024. The cubic root of 120100023 is about 493.3794201020.

Adding to 120100023 its reverse (320001021), we get a palindrome (440101044).

The spelling of 120100023 in words is "one hundred twenty million, one hundred thousand, twenty-three".