120303621 has 12 divisors (see below), whose sum is σ = 173941248. Its totient is φ = 80124264.

The previous prime is 120303569. The next prime is 120303683. The reversal of 120303621 is 126303021.

120303621 is a `hidden beast` number, since 12 + 0 + 30 + 3 + 621 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-120303621 is a prime.

It is a super-2 number, since 2×120303621² = 28945922451423282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120303594 and 120303603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120303721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4156 + ... + 16058.

It is an arithmetic number, because the mean of its divisors is an integer number (14495104).

Almost surely, 2^120303621 is an apocalyptic number.

It is an amenable number.

120303621 is a deficient number, since it is larger than the sum of its proper divisors (53637627).

120303621 is a wasteful number, since it uses less digits than its factorization.

120303621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13032 (or 13029 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 120303621 is about 10968.3007343891. The cubic root of 120303621 is about 493.6580610528.

Adding to 120303621 its reverse (126303021), we get a palindrome (246606642).

It can be divided in two parts, 12030 and 3621, that added together give a palindrome (15651).

The spelling of 120303621 in words is "one hundred twenty million, three hundred three thousand, six hundred twenty-one".