ANSWERS: 2
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its generally referred to as a number written as a palindrome, in my experience anyhow
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A number that's the same backward as it is forward is also called a palindrome. http://www.merriam-webster.com/dictionary/palindrome "a word, verse, or sentence (as “Able was I ere I saw Elba”) or a number (as 1881) that reads the same backward or forward"
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