It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 672 313 023 is not a prime number.
For example, 672 313 023 can be divided by 3: 672 313 023 / 3 = 224 104 341.
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For 672 313 023 to be a prime number, it would have been required that 672 313 023 has only two divisors, i.e., itself and 1.
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672 313 023 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 672 313 023 is about 25 929.000.
Thus, the square root of 672 313 023 is not an integer, and therefore 672 313 023 is not a square number.
The square of a number (here 672 313 023) is the result of the product of this number (672 313 023) by itself (i.e., 672 313 023 × 672 313 023); the square of 672 313 023 is sometimes called "raising 672 313 023 to the power 2", or "672 313 023 squared".
The square of 672 313 023 is 452 004 800 895 398 528 because 672 313 023 × 672 313 023 = 672 313 0232 = 452 004 800 895 398 528.
As a consequence, 672 313 023 is the square root of 452 004 800 895 398 528.
672 313 023 is a number with 9 digits.
The multiples of 672 313 023 are all integers evenly divisible by 672 313 023, that is all numbers such that the remainder of the division by 672 313 023 is zero. There are infinitely many multiples of 672 313 023. The smallest multiples of 672 313 023 are: