103000503 has 4 divisors (see below), whose sum is σ = 137334008. Its totient is φ = 68667000.

The previous prime is 103000483. The next prime is 103000537. The reversal of 103000503 is 305000301.

It is a happy number.

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

It is not a de Polignac number, because 103000503 - 2⁶ = 103000439 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 (103000543) 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, 17166748 + ... + 17166753.

It is an arithmetic number, because the mean of its divisors is an integer number (34333502).

Almost surely, 2^103000503 is an apocalyptic number.

103000503 is a deficient number, since it is larger than the sum of its proper divisors (34333505).

103000503 is an equidigital number, since it uses as much as digits as its factorization.

103000503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34333504.

The product of its (nonzero) digits is 45, while the sum is 12.

The square root of 103000503 is about 10148.9163460933. The cubic root of 103000503 is about 468.7555778181.

Adding to 103000503 its reverse (305000301), we get a palindrome (408000804).

The spelling of 103000503 in words is "one hundred three million, five hundred three", and thus it is an aban number.