120020123 has 4 divisors (see below), whose sum is σ = 121987728. Its totient is φ = 118052520.

The previous prime is 120020113. The next prime is 120020129. The reversal of 120020123 is 321020021.

It is a happy number.

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 120020123 - 2⁴ = 120020107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120020129) 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, 983711 + ... + 983832.

It is an arithmetic number, because the mean of its divisors is an integer number (30496932).

Almost surely, 2^120020123 is an apocalyptic number.

120020123 is a deficient number, since it is larger than the sum of its proper divisors (1967605).

120020123 is an equidigital number, since it uses as much as digits as its factorization.

120020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967604.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 120020123 is about 10955.3695966864. The cubic root of 120020123 is about 493.2699842060.

Adding to 120020123 its reverse (321020021), we get a palindrome (441040144).

The spelling of 120020123 in words is "one hundred twenty million, twenty thousand, one hundred twenty-three".