120030621 has 16 divisors (see below), whose sum is σ = 164757504. Its totient is φ = 77689584.

The previous prime is 120030611. The next prime is 120030641. The reversal of 120030621 is 126030021.

It is not a de Polignac number, because 120030621 - 2¹⁰ = 120029597 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120030621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120030601) 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, 14556 + ... + 21258.

It is an arithmetic number, because the mean of its divisors is an integer number (10297344).

Almost surely, 2^120030621 is an apocalyptic number.

It is an amenable number.

120030621 is a deficient number, since it is larger than the sum of its proper divisors (44726883).

120030621 is a wasteful number, since it uses less digits than its factorization.

120030621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6880.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 120030621 is about 10955.8487119894. The cubic root of 120030621 is about 493.2843656758.

Adding to 120030621 its reverse (126030021), we get a palindrome (246060642).

The spelling of 120030621 in words is "one hundred twenty million, thirty thousand, six hundred twenty-one".