It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 2 002 103 is not a prime number.
For example, 2 002 103 can be divided by 239: 2 002 103 / 239 = 8 377.
For 2 002 103 to be a prime number, it would have been required that 2 002 103 has only two divisors, i.e., itself and 1.
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2 002 103 is an odd number, because it is not evenly divisible by 2.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 2 002 103 is about 1 414.957.
Thus, the square root of 2 002 103 is not an integer, and therefore 2 002 103 is not a square number.
The square of a number (here 2 002 103) is the result of the product of this number (2 002 103) by itself (i.e., 2 002 103 × 2 002 103); the square of 2 002 103 is sometimes called "raising 2 002 103 to the power 2", or "2 002 103 squared".
The square of 2 002 103 is 4 008 416 422 609 because 2 002 103 × 2 002 103 = 2 002 1032 = 4 008 416 422 609.
As a consequence, 2 002 103 is the square root of 4 008 416 422 609.
The multiples of 2 002 103 are all integers evenly divisible by 2 002 103, that is all numbers such that the remainder of the division by 2 002 103 is zero. There are infinitely many multiples of 2 002 103. The smallest multiples of 2 002 103 are: