120320144 has 20 divisors (see below), whose sum is σ = 266423424. Its totient is φ = 51565728.

The previous prime is 120320111. The next prime is 120320173. The reversal of 120320144 is 441023021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537032 + ... + 537255.

Almost surely, 2^120320144 is an apocalyptic number.

120320144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

120320144 is an abundant number, since it is smaller than the sum of its proper divisors (146103280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120320144 is a wasteful number, since it uses less digits than its factorization.

120320144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074302 (or 1074296 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 120320144 is about 10969.0539245643. The cubic root of 120320144 is about 493.6806603691.

Adding to 120320144 its reverse (441023021), we get a palindrome (561343165).

The spelling of 120320144 in words is "one hundred twenty million, three hundred twenty thousand, one hundred forty-four".