וּמֹשֶׁ֗ה בֶּן־מֵאָ֧ה וְעֶשְׂרִ֛ים שָׁנָ֖ה בְּמֹת֑וֹ לֹֽא־כָהֲתָ֥ה עֵינ֖וֹ וְלֹא־נָ֥ס לֵחֹֽה׃
And Moses was a hundred and twenty years old when he died: his eye was not dim, nor his natural force abated.
Read kabbalistic (mystical) interpretation of Deuteronomy 34:7: and classical mystical sources.