13030321 has 4 divisors (see below), whose sum is σ = 13096000. Its totient is φ = 12964644.

The previous prime is 13030319. The next prime is 13030343. The reversal of 13030321 is 12303031.

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 13030321 - 2¹ = 13030319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13030621) 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 3 ways as a sum of consecutive naturals, for example, 32541 + ... + 32938.

It is an arithmetic number, because the mean of its divisors is an integer number (3274000).

Almost surely, 2^13030321 is an apocalyptic number.

It is an amenable number.

13030321 is a deficient number, since it is larger than the sum of its proper divisors (65679).

13030321 is an equidigital number, since it uses as much as digits as its factorization.

13030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65678.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 13030321 is about 3609.7535926985. The cubic root of 13030321 is about 235.3161340587.

Adding to 13030321 its reverse (12303031), we get a palindrome (25333352).

The spelling of 13030321 in words is "thirteen million, thirty thousand, three hundred twenty-one".