103321003 has 4 divisors (see below), whose sum is σ = 103810888. Its totient is φ = 102831120.

The previous prime is 103320989. The next prime is 103321021. The reversal of 103321003 is 300123301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300123301 = 6823 ⋅43987.

It is a cyclic number.

It is not a de Polignac number, because 103321003 - 2⁹ = 103320491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103321033) 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 3 ways as a sum of consecutive naturals, for example, 244626 + ... + 245047.

It is an arithmetic number, because the mean of its divisors is an integer number (25952722).

Almost surely, 2^103321003 is an apocalyptic number.

103321003 is a deficient number, since it is larger than the sum of its proper divisors (489885).

103321003 is an equidigital number, since it uses as much as digits as its factorization.

103321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489884.

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

The square root of 103321003 is about 10164.6939452204. The cubic root of 103321003 is about 469.2412731963.

Adding to 103321003 its reverse (300123301), we get a palindrome (403444304).

The spelling of 103321003 in words is "one hundred three million, three hundred twenty-one thousand, three".