120423807 has 16 divisors (see below), whose sum is σ = 203892480. Its totient is φ = 68813496.

The previous prime is 120423799. The next prime is 120423817. The reversal of 120423807 is 708324021.

It is not a de Polignac number, because 120423807 - 2³ = 120423799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120423817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318393 + ... + 318770.

It is an arithmetic number, because the mean of its divisors is an integer number (12743280).

Almost surely, 2^120423807 is an apocalyptic number.

120423807 is a deficient number, since it is larger than the sum of its proper divisors (83468673).

120423807 is an equidigital number, since it uses as much as digits as its factorization.

120423807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637179 (or 637173 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 120423807 is about 10973.7781552207. The cubic root of 120423807 is about 493.8223981431.

Adding to 120423807 its reverse (708324021), we get a palindrome (828747828).

The spelling of 120423807 in words is "one hundred twenty million, four hundred twenty-three thousand, eight hundred seven".