103312003 has 4 divisors (see below), whose sum is σ = 103335480. Its totient is φ = 103288528.

The previous prime is 103311983. The next prime is 103312019. The reversal of 103312003 is 300213301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103312003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103312073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938 + ... + 14671.

It is an arithmetic number, because the mean of its divisors is an integer number (25833870).

Almost surely, 2^103312003 is an apocalyptic number.

103312003 is a deficient number, since it is larger than the sum of its proper divisors (23477).

103312003 is an equidigital number, since it uses as much as digits as its factorization.

103312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23476.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 103312003 is about 10164.2512267260. The cubic root of 103312003 is about 469.2276480412.

Adding to 103312003 its reverse (300213301), we get a palindrome (403525304).

The spelling of 103312003 in words is "one hundred three million, three hundred twelve thousand, three".