 
Copyright © 2002 by Rainer Typke
No zeros occur in this puzzle.
Across: A: This prime number equals the sum of B down and the reverse of A down.
C: This prime number equals the digit sum of F down.
D: D across + 1 is a cubic number.
E: A palindrome.
G: G across is both a cubic number and a square number.
I: This prime number is a palindrome and has the same digit sum as F down.
K: G across multiplied with the digit product of A down.
L: This prime number equals the sum of the digit sums of A across, F down, E across, K across, and G across.
Down: A: A square number.
B: The reverse of a prime number.
C: The reverse of this square number is prime.
D: The digit product of E across.
F: Five times A across.
H: A prime number.
I: G across plus the digit sum of G across
J: A palindrome.
