Numerical Palindromes

Replace each letter of a word with its numerical equivalent--1 for a, 2 for
b, ..., 26 for z. The resulting sequence of digits is a numerical
palindrome if it reads identically left to right and right to left. For
example, the word cam is a numerical palindrome as follows:

cam
3113

Find the ONLY TWO COMMON 6-letter English words that form numerical
palindromes. (Incidentally, I believe there are no common words longer than 6 letters that form numerical palindromes.)

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