120023 has 4 divisors (see below), whose sum is σ = 126360. Its totient is φ = 113688.

The previous prime is 120017. The next prime is 120041. The reversal of 120023 is 320021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140 + ... + 3177.

It is an arithmetic number, because the mean of its divisors is an integer number (31590).

2¹²⁰⁰²³ is an apocalyptic number.

120023 is a deficient number, since it is larger than the sum of its proper divisors (6337).

120023 is an equidigital number, since it uses as much as digits as its factorization.

120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 120023 is about 346.4433575637. The cubic root of 120023 is about 49.3273925563.

Adding to 120023 its reverse (320021), we get a palindrome (440044).

The spelling of 120023 in words is "one hundred twenty thousand, twenty-three", and thus it is an iban number.