12423305 has 8 divisors (see below), whose sum is σ = 15311112. Its totient is φ = 9669888.

The previous prime is 12423263. The next prime is 12423347. The reversal of 12423305 is 50332421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12423263) and next prime (12423347).

It can be written as a sum of positive squares in 4 ways, for example, as 1951609 + 10471696 = 1397^2 + 3236^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12423305 - 2¹⁰ = 12422281 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 7 ways as a sum of consecutive naturals, for example, 33392 + ... + 33761.

It is an arithmetic number, because the mean of its divisors is an integer number (1913889).

Almost surely, 2^12423305 is an apocalyptic number.

It is an amenable number.

12423305 is a deficient number, since it is larger than the sum of its proper divisors (2887807).

12423305 is an equidigital number, since it uses as much as digits as its factorization.

12423305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67195.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12423305 is about 3524.6709066238. The cubic root of 12423305 is about 231.6038187321.

Adding to 12423305 its reverse (50332421), we get a palindrome (62755726).

The spelling of 12423305 in words is "twelve million, four hundred twenty-three thousand, three hundred five".