13243103 has 4 divisors (see below), whose sum is σ = 13251408. Its totient is φ = 13234800.

The previous prime is 13243091. The next prime is 13243121. The reversal of 13243103 is 30134231.

It is a happy number.

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 13243103 - 2¹⁰ = 13242079 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 (13243303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (3312852).

Almost surely, 2^13243103 is an apocalyptic number.

13243103 is a deficient number, since it is larger than the sum of its proper divisors (8305).

13243103 is an equidigital number, since it uses as much as digits as its factorization.

13243103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13243103 is about 3639.1074455146. The cubic root of 13243103 is about 236.5901096910.

Adding to 13243103 its reverse (30134231), we get a palindrome (43377334).

The spelling of 13243103 in words is "thirteen million, two hundred forty-three thousand, one hundred three".