It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 130 231 is not a prime number.
For example, 130 231 can be divided by 31: 130 231 / 31 = 4 201.
For 130 231 to be a prime number, it would have been required that 130 231 has only two divisors, i.e., itself and 1.
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130 231 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 130 231 is about 360.875.
Thus, the square root of 130 231 is not an integer, and therefore 130 231 is not a square number.
The square of a number (here 130 231) is the result of the product of this number (130 231) by itself (i.e., 130 231 × 130 231); the square of 130 231 is sometimes called "raising 130 231 to the power 2", or "130 231 squared".
The square of 130 231 is 16 960 113 361 because 130 231 × 130 231 = 130 2312 = 16 960 113 361.
As a consequence, 130 231 is the square root of 16 960 113 361.
The multiples of 130 231 are all integers evenly divisible by 130 231, that is all numbers such that the remainder of the division by 130 231 is zero. There are infinitely many multiples of 130 231. The smallest multiples of 130 231 are: