12150321 has 8 divisors (see below), whose sum is σ = 16239744. Its totient is φ = 8080560.

The previous prime is 12150311. The next prime is 12150323. The reversal of 12150321 is 12305121.

12150321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12150321 - 2⁵ = 12150289 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 12150321.

It is not an unprimeable number, because it can be changed into a prime (12150323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3406 + ... + 5991.

It is an arithmetic number, because the mean of its divisors is an integer number (2029968).

Almost surely, 2^12150321 is an apocalyptic number.

It is an amenable number.

12150321 is a deficient number, since it is larger than the sum of its proper divisors (4089423).

12150321 is an equidigital number, since it uses as much as digits as its factorization.

12150321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12150321 is about 3485.7310567512. The cubic root of 12150321 is about 229.8948542708.

Adding to 12150321 its reverse (12305121), we get a palindrome (24455442).

The spelling of 12150321 in words is "twelve million, one hundred fifty thousand, three hundred twenty-one".