120330556 has 24 divisors (see below), whose sum is σ = 223307280. Its totient is φ = 56539392.

The previous prime is 120330547. The next prime is 120330563. The reversal of 120330556 is 655033021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120330556.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 73515 + ... + 75133.

It is an arithmetic number, because the mean of its divisors is an integer number (9304470).

Almost surely, 2^120330556 is an apocalyptic number.

It is an amenable number.

120330556 is a deficient number, since it is larger than the sum of its proper divisors (102976724).

120330556 is a wasteful number, since it uses less digits than its factorization.

120330556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 120330556 is about 10969.5285222292. The cubic root of 120330556 is about 493.6949003087.

Adding to 120330556 its reverse (655033021), we get a palindrome (775363577).

The spelling of 120330556 in words is "one hundred twenty million, three hundred thirty thousand, five hundred fifty-six".