It is a happy number.
It is a semiprime because it is the product of two primes.
It is a D-number.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a congruent number.
21232103 is an apocalyptic number.
1232103 is an equidigital number, since it uses as much as digits as its factorization.
1232103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 410704.
The square root of 1232103 is about 1110.0013513505. The cubic root of 1232103 is about 107.2051556424.
Adding to 1232103 its reverse (3012321), we get a palindrome (4244424).
The spelling of 1232103 in words is "one million, two hundred thirty-two thousand, one hundred three".