120320765 has 24 divisors (see below), whose sum is σ = 152291328. Its totient is φ = 91162080.

The previous prime is 120320737. The next prime is 120320777. The reversal of 120320765 is 567023021.

120320765 = T₁₉₉₀ + T₁₉₉₁ + ... + T₂₀₄₈.

It is not a de Polignac number, because 120320765 - 2¹⁴ = 120304381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 539444 + ... + 539666.

It is an arithmetic number, because the mean of its divisors is an integer number (6345472).

Almost surely, 2^120320765 is an apocalyptic number.

It is an amenable number.

120320765 is a deficient number, since it is larger than the sum of its proper divisors (31970563).

120320765 is an equidigital number, since it uses as much as digits as its factorization.

120320765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 120320765 is about 10969.0822314358. The cubic root of 120320765 is about 493.6815097008.

Adding to 120320765 its reverse (567023021), we get a palindrome (687343786).

The spelling of 120320765 in words is "one hundred twenty million, three hundred twenty thousand, seven hundred sixty-five".