100003003 has 4 divisors (see below), whose sum is σ = 101411568. Its totient is φ = 98594440.

The previous prime is 100002979. The next prime is 100003021. The reversal of 100003003 is 300300001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100003003 - 2²¹ = 97905851 is a prime.

It is a Duffinian number.

100003003 is a modest number, since divided by 3003 gives 100 as remainder.

It is not an unprimeable number, because it can be changed into a prime (100003063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704176 + ... + 704317.

It is an arithmetic number, because the mean of its divisors is an integer number (25352892).

Almost surely, 2^100003003 is an apocalyptic number.

100003003 is a deficient number, since it is larger than the sum of its proper divisors (1408565).

100003003 is an equidigital number, since it uses as much as digits as its factorization.

100003003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408564.

The product of its (nonzero) digits is 9, while the sum is 7.

The square root of 100003003 is about 10000.1501488728. The cubic root of 100003003 is about 464.1635295452.

Adding to 100003003 its reverse (300300001), we get a palindrome (400303004).

The spelling of 100003003 in words is "one hundred million, three thousand, three".