120456123 has 4 divisors (see below), whose sum is σ = 160608168. Its totient is φ = 80304080.

The previous prime is 120456103. The next prime is 120456137. The reversal of 120456123 is 321654021.

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 120456123 - 2¹⁰ = 120455099 is a prime.

It is a super-3 number, since 3×120456123³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 120456093 and 120456102.

It is not an unprimeable number, because it can be changed into a prime (120456103) 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, 20076018 + ... + 20076023.

It is an arithmetic number, because the mean of its divisors is an integer number (40152042).

Almost surely, 2^120456123 is an apocalyptic number.

120456123 is a deficient number, since it is larger than the sum of its proper divisors (40152045).

120456123 is an equidigital number, since it uses as much as digits as its factorization.

120456123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40152044.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 120456123 is about 10975.2504755017. The cubic root of 120456123 is about 493.8665669769.

The spelling of 120456123 in words is "one hundred twenty million, four hundred fifty-six thousand, one hundred twenty-three".