120839923 has 2 divisors, whose sum is σ = 120839924. Its totient is φ = 120839922.

The previous prime is 120839921. The next prime is 120839959. The reversal of 120839923 is 329938021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120839923 - 2¹ = 120839921 is a prime.

Together with 120839921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120839921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60419961 + 60419962.

It is an arithmetic number, because the mean of its divisors is an integer number (60419962).

Almost surely, 2^120839923 is an apocalyptic number.

120839923 is a deficient number, since it is larger than the sum of its proper divisors (1).

120839923 is an equidigital number, since it uses as much as digits as its factorization.

120839923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 120839923 is about 10992.7213646121. The cubic root of 120839923 is about 494.3905337884.

The spelling of 120839923 in words is "one hundred twenty million, eight hundred thirty-nine thousand, nine hundred twenty-three".