11430321 has 24 divisors (see below), whose sum is σ = 18150720. Its totient is φ = 6260352.

The previous prime is 11430319. The next prime is 11430329. The reversal of 11430321 is 12303411.

It is not a de Polignac number, because 11430321 - 2¹ = 11430319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11430321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430329) 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 23 ways as a sum of consecutive naturals, for example, 83365 + ... + 83501.

It is an arithmetic number, because the mean of its divisors is an integer number (756280).

Almost surely, 2^11430321 is an apocalyptic number.

It is an amenable number.

11430321 is a deficient number, since it is larger than the sum of its proper divisors (6720399).

11430321 is an equidigital number, since it uses as much as digits as its factorization.

11430321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11430321 is about 3380.8757741153. The cubic root of 11430321 is about 225.2610698004.

Adding to 11430321 its reverse (12303411), we get a palindrome (23733732).

The spelling of 11430321 in words is "eleven million, four hundred thirty thousand, three hundred twenty-one".