120023903 has 4 divisors (see below), whose sum is σ = 120940248. Its totient is φ = 119107560.

The previous prime is 120023873. The next prime is 120023921. The reversal of 120023903 is 309320021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120023903 - 2⁸ = 120023647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120023923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457976 + ... + 458237.

It is an arithmetic number, because the mean of its divisors is an integer number (30235062).

Almost surely, 2^120023903 is an apocalyptic number.

120023903 is a deficient number, since it is larger than the sum of its proper divisors (916345).

120023903 is an equidigital number, since it uses as much as digits as its factorization.

120023903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916344.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 120023903 is about 10955.5421134693. The cubic root of 120023903 is about 493.2751626181.

Adding to 120023903 its reverse (309320021), we get a palindrome (429343924).

The spelling of 120023903 in words is "one hundred twenty million, twenty-three thousand, nine hundred three".