13023305 has 4 divisors (see below), whose sum is σ = 15627972. Its totient is φ = 10418640.

The previous prime is 13023289. The next prime is 13023383. The reversal of 13023305 is 50332031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2917264 + 10106041 = 1708^2 + 3179^2 .

It is not a de Polignac number, because 13023305 - 2⁴ = 13023289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1302326 + ... + 1302335.

It is an arithmetic number, because the mean of its divisors is an integer number (3906993).

Almost surely, 2^13023305 is an apocalyptic number.

It is an amenable number.

13023305 is a deficient number, since it is larger than the sum of its proper divisors (2604667).

13023305 is an equidigital number, since it uses as much as digits as its factorization.

13023305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604666.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 13023305 is about 3608.7816503635. The cubic root of 13023305 is about 235.2738922137.

Adding to 13023305 its reverse (50332031), we get a palindrome (63355336).

The spelling of 13023305 in words is "thirteen million, twenty-three thousand, three hundred five".