OFFSET
1,2
EXAMPLE
phi(17280)*prime(17280) = 4608*191461 = 882252288.
MATHEMATICA
pppQ[n_]:=Module[{c=IntegerDigits[EulerPhi[n]Prime[n]]}, c == Reverse[c]]; Select[Range[6000000], pppQ] (* Harvey P. Dale, Aug 01 2012 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved