12503203 has 8 divisors (see below), whose sum is σ = 12792528. Its totient is φ = 12217344.

The previous prime is 12503201. The next prime is 12503209. The reversal of 12503203 is 30230521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12503203 - 2¹ = 12503201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12503201) 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 7 ways as a sum of consecutive naturals, for example, 7275 + ... + 8827.

It is an arithmetic number, because the mean of its divisors is an integer number (1599066).

Almost surely, 2^12503203 is an apocalyptic number.

12503203 is a deficient number, since it is larger than the sum of its proper divisors (289325).

12503203 is an equidigital number, since it uses as much as digits as its factorization.

12503203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 12503203 is about 3535.9868495231. The cubic root of 12503203 is about 232.0992626665.

Adding to 12503203 its reverse (30230521), we get a palindrome (42733724).

The spelling of 12503203 in words is "twelve million, five hundred three thousand, two hundred three".