120280123 has 4 divisors (see below), whose sum is σ = 120890880. Its totient is φ = 119669368.

The previous prime is 120280103. The next prime is 120280141. The reversal of 120280123 is 321082021.

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-120280123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120280123.

It is not an unprimeable number, because it can be changed into a prime (120280103) 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, 305083 + ... + 305476.

It is an arithmetic number, because the mean of its divisors is an integer number (30222720).

Almost surely, 2^120280123 is an apocalyptic number.

120280123 is a deficient number, since it is larger than the sum of its proper divisors (610757).

120280123 is an equidigital number, since it uses as much as digits as its factorization.

120280123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610756.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 120280123 is about 10967.2295043005. The cubic root of 120280123 is about 493.6259181232.

The spelling of 120280123 in words is "one hundred twenty million, two hundred eighty thousand, one hundred twenty-three".