30020321 has 8 divisors (see below), whose sum is σ = 31241760. Its totient is φ = 28822752.

The previous prime is 30020299. The next prime is 30020327. The reversal of 30020321 is 12302003.

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

It is a cyclic number.

It is not a de Polignac number, because 30020321 - 2⁶ = 30020257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30020327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3380 + ... + 8453.

It is an arithmetic number, because the mean of its divisors is an integer number (3905220).

Almost surely, 2^30020321 is an apocalyptic number.

It is an amenable number.

30020321 is a deficient number, since it is larger than the sum of its proper divisors (1221439).

30020321 is a wasteful number, since it uses less digits than its factorization.

30020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11935.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30020321 is about 5479.0803060368. The cubic root of 30020321 is about 310.7933926180.

Adding to 30020321 its reverse (12302003), we get a palindrome (42322324).

The spelling of 30020321 in words is "thirty million, twenty thousand, three hundred twenty-one".