12305121 has 8 divisors (see below), whose sum is σ = 16464000. Its totient is φ = 8174832.

The previous prime is 12305113. The next prime is 12305149. The reversal of 12305121 is 12150321.

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

It is not a de Polignac number, because 12305121 - 2³ = 12305113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12305121.

It is not an unprimeable number, because it can be changed into a prime (12305191) 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, 6121 + ... + 7878.

It is an arithmetic number, because the mean of its divisors is an integer number (2058000).

Almost surely, 2^12305121 is an apocalyptic number.

It is an amenable number.

12305121 is a deficient number, since it is larger than the sum of its proper divisors (4158879).

12305121 is a wasteful number, since it uses less digits than its factorization.

12305121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14295.

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

The square root of 12305121 is about 3507.8655903555. The cubic root of 12305121 is about 230.8670549277.

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

The spelling of 12305121 in words is "twelve million, three hundred five thousand, one hundred twenty-one".