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The minimum palindromic prime p such that p + 1 each has exactly 4 distinct prime factors. [Das]

The smallest palindromic prime with 5 embedded primes: 3331, 331, 31, 13 and 3. [Necula]

(1^0+3^0+3^0+3^0+1^0) + (1^1+3^1+3^1+3^1+1^1) + (1^2+3^2+3^2+3^2+1^2) + (1^3+3^3+3^3+3^3+1^3) + (1^4+3^4+3^4+3^4+1^4) is another palindromic prime. [Silva]