120320305 has 16 divisors (see below), whose sum is σ = 174718080. Its totient is φ = 77651712.

The previous prime is 120320303. The next prime is 120320309. The reversal of 120320305 is 503023021.

It is a cyclic number.

It is not a de Polignac number, because 120320305 - 2¹ = 120320303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120320303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100515 + ... + 101704.

It is an arithmetic number, because the mean of its divisors is an integer number (10919880).

Almost surely, 2^120320305 is an apocalyptic number.

It is an amenable number.

120320305 is a deficient number, since it is larger than the sum of its proper divisors (54397775).

120320305 is a wasteful number, since it uses less digits than its factorization.

120320305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202248.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 120320305 is about 10969.0612633899. The cubic root of 120320305 is about 493.6808805665.

Adding to 120320305 its reverse (503023021), we get a palindrome (623343326).

The spelling of 120320305 in words is "one hundred twenty million, three hundred twenty thousand, three hundred five".