12342403 has 4 divisors (see below), whose sum is σ = 12350520. Its totient is φ = 12334288.

The previous prime is 12342389. The next prime is 12342409. The reversal of 12342403 is 30424321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12342403 - 2²¹ = 10245251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12342409) by changing a digit.

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, 1018 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (3087630).

Almost surely, 2^12342403 is an apocalyptic number.

12342403 is a deficient number, since it is larger than the sum of its proper divisors (8117).

12342403 is an equidigital number, since it uses as much as digits as its factorization.

12342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 12342403 is about 3513.1756289716. The cubic root of 12342403 is about 231.0999798342.

Adding to 12342403 its reverse (30424321), we get a palindrome (42766724).

The spelling of 12342403 in words is "twelve million, three hundred forty-two thousand, four hundred three".