Check Palindrome in Kotlin

fun main(args: Array<String>) {
    val originalNumber = 12321

    var reverseNumber = 0
    var temp = originalNumber

    while (temp > 0) {
        val remainder = temp % 10
        reverseNumber = (reverseNumber * 10) + remainder
        temp = temp / 10
    }

    if (originalNumber == reverseNumber) {
        println("The given number is Palindrome")
    } else {
        println("The given number is NOT a Palindrome")
    }
}

fun main(args: Array<String>) {
    val originalString = "Madam"

    var reverseString = ""
    var length = originalString.length

    for (i in (length - 1) downTo 0) {
        reverseString = reverseString + originalString[i]
    }

    // Case in-sensitive comparision
    if (originalString.equals(reverseString, ignoreCase = true)) {
        println("The given string is Palindrome")
    } else {
        println("The given string is NOT a Palindrome")
    }
}