120423304999 has 4 divisors (see below), whose sum is σ = 120758746320. Its totient is φ = 120087863680.

The previous prime is 120423304979. The next prime is 120423305063. The reversal of 120423304999 is 999403324021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999403324021 = 487 ⋅2052162883.

It is a cyclic number.

It is not a de Polignac number, because 120423304999 - 2⁷ = 120423304871 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 (120423304949) 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 in 3 ways as a sum of consecutive naturals, for example, 167720122 + ... + 167720839.

It is an arithmetic number, because the mean of its divisors is an integer number (30189686580).

Almost surely, 2^120423304999 is an apocalyptic number.

120423304999 is a deficient number, since it is larger than the sum of its proper divisors (335441321).

120423304999 is an equidigital number, since it uses as much as digits as its factorization.

120423304999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335441320.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 120423304999 in words is "one hundred twenty billion, four hundred twenty-three million, three hundred four thousand, nine hundred ninety-nine".