It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 538 438 is not a prime number.
For example, 120 538 438 can be divided by 2: 120 538 438 / 2 = 60 269 219.
For 120 538 438 to be a prime number, it would have been required that 120 538 438 has only two divisors, i.e., itself and 1.
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120 538 438 is an even number, because it is evenly divisible by 2: 120 538 438 / 2 = 60 269 219.
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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 120 538 438 is about 10 979.000.
Thus, the square root of 120 538 438 is not an integer, and therefore 120 538 438 is not a square number.
The square of a number (here 120 538 438) is the result of the product of this number (120 538 438) by itself (i.e., 120 538 438 × 120 538 438); the square of 120 538 438 is sometimes called "raising 120 538 438 to the power 2", or "120 538 438 squared".
The square of 120 538 438 is 14 529 515 035 479 844 because 120 538 438 × 120 538 438 = 120 538 4382 = 14 529 515 035 479 844.
As a consequence, 120 538 438 is the square root of 14 529 515 035 479 844.
120 538 438 is a number with 9 digits.
The multiples of 120 538 438 are all integers evenly divisible by 120 538 438, that is all numbers such that the remainder of the division by 120 538 438 is zero. There are infinitely many multiples of 120 538 438. The smallest multiples of 120 538 438 are: