120003621 has 8 divisors (see below), whose sum is σ = 160692480. Its totient is φ = 79658592.

The previous prime is 120003613. The next prime is 120003623. The reversal of 120003621 is 126300021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120003621 - 2³ = 120003613 is a prime.

It is a super-2 number, since 2×120003621² = 28801738106223282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120003621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120003623) by changing a digit.

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, 85141 + ... + 86538.

It is an arithmetic number, because the mean of its divisors is an integer number (20086560).

Almost surely, 2^120003621 is an apocalyptic number.

It is an amenable number.

120003621 is a deficient number, since it is larger than the sum of its proper divisors (40688859).

120003621 is a wasteful number, since it uses less digits than its factorization.

120003621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171915.

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

The square root of 120003621 is about 10954.6164241383. The cubic root of 120003621 is about 493.2473760128.

Adding to 120003621 its reverse (126300021), we get a palindrome (246303642).

The spelling of 120003621 in words is "one hundred twenty million, three thousand, six hundred twenty-one".