12330521 has 4 divisors (see below), whose sum is σ = 14092032. Its totient is φ = 10569012.

The previous prime is 12330517. The next prime is 12330523. The reversal of 12330521 is 12503321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12330521 - 2² = 12330517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12330521.

It is not an unprimeable number, because it can be changed into a prime (12330523) 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 3 ways as a sum of consecutive naturals, for example, 880745 + ... + 880758.

It is an arithmetic number, because the mean of its divisors is an integer number (3523008).

Almost surely, 2^12330521 is an apocalyptic number.

It is an amenable number.

12330521 is a deficient number, since it is larger than the sum of its proper divisors (1761511).

12330521 is an equidigital number, since it uses as much as digits as its factorization.

12330521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761510.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12330521 is about 3511.4841591555. The cubic root of 12330521 is about 231.0257962359.

Adding to 12330521 its reverse (12503321), we get a palindrome (24833842).

The spelling of 12330521 in words is "twelve million, three hundred thirty thousand, five hundred twenty-one".