This number is a composite.
74 3008370701
The smallest emirpimes of the form n^(n-1)+(n+1): 12^11+13 = 743008370701, case n=12. [Bajpai]
The smallest emirpimes of the form n^(n-1)+(n+1): 12^11+13 = 743008370701, case n=12. [Bajpai]