12326403 has 4 divisors (see below), whose sum is σ = 16435208. Its totient is φ = 8217600.

The previous prime is 12326393. The next prime is 12326417. The reversal of 12326403 is 30462321.

It is a happy number.

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

It is not a de Polignac number, because 12326403 - 2⁵ = 12326371 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 12326403.

It is not an unprimeable number, because it can be changed into a prime (12326443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054398 + ... + 2054403.

It is an arithmetic number, because the mean of its divisors is an integer number (4108802).

Almost surely, 2^12326403 is an apocalyptic number.

12326403 is a deficient number, since it is larger than the sum of its proper divisors (4108805).

12326403 is an equidigital number, since it uses as much as digits as its factorization.

12326403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108804.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 12326403 is about 3510.8977484398. The cubic root of 12326403 is about 231.0000749611. Note that the first 4 decimals are identical.

Adding to 12326403 its reverse (30462321), we get a palindrome (42788724).

The spelling of 12326403 in words is "twelve million, three hundred twenty-six thousand, four hundred three".