It seems much simpler to use reverse in scalar context: 
    my $rev = reverse $n;

[download]

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re: Largest palindrome number for a 3 digit product of 2 numbers by choroba
in thread Largest palindrome number for a 3 digit product of 2 numbers by pr33

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