12030321 has 8 divisors (see below), whose sum is σ = 16147264. Its totient is φ = 7966800.

The previous prime is 12030301. The next prime is 12030323. The reversal of 12030321 is 12303021.

It is a happy number.

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

It is not a de Polignac number, because 12030321 - 2⁵ = 12030289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030297 and 12030306.

It is not an unprimeable number, because it can be changed into a prime (12030323) 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, 12826 + ... + 13731.

It is an arithmetic number, because the mean of its divisors is an integer number (2018408).

Almost surely, 2^12030321 is an apocalyptic number.

It is an amenable number.

12030321 is a deficient number, since it is larger than the sum of its proper divisors (4116943).

12030321 is a wasteful number, since it uses less digits than its factorization.

12030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12030321 is about 3468.4753134483. The cubic root of 12030321 is about 229.1355134438.

Adding to 12030321 its reverse (12303021), we get a palindrome (24333342).

The spelling of 12030321 in words is "twelve million, thirty thousand, three hundred twenty-one".