12345103 has 4 divisors (see below), whose sum is σ = 12514288. Its totient is φ = 12175920.

The previous prime is 12345083. The next prime is 12345121. The reversal of 12345103 is 30154321.

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

It is a cyclic number.

It is not a de Polignac number, because 12345103 - 2⁵ = 12345071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345143) 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, 84483 + ... + 84628.

It is an arithmetic number, because the mean of its divisors is an integer number (3128572).

Almost surely, 2^12345103 is an apocalyptic number.

12345103 is a deficient number, since it is larger than the sum of its proper divisors (169185).

12345103 is an equidigital number, since it uses as much as digits as its factorization.

12345103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169184.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12345103 is about 3513.5598756816. The cubic root of 12345103 is about 231.1168302658.

Adding to 12345103 its reverse (30154321), we get a palindrome (42499424).

The spelling of 12345103 in words is "twelve million, three hundred forty-five thousand, one hundred three".