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A109184
Palindromic primes with digit sum 20.
3
929, 16661, 17471, 36263, 70607, 72227, 73037, 91019, 1074701, 1082801, 1180811, 1262621, 1328231, 1360631, 1508051, 1532351, 1630361, 1712171, 1802081, 3160613, 3218123, 7014107, 7300037, 9002009, 102383201, 102707201, 103282301
OFFSET
1,1
COMMENTS
Cf. A070250 Palindromic primes with digit sum 10, A107579 Primes with digit sum = 10, A106760 Primes with digit sum = 20, A109185 Palindromic primes with digit sum 40.
MATHEMATICA
Select[Prime[Range[5940000]], PalindromeQ[#]&&Total[IntegerDigits[#]]==20&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jun 19 2021 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Zak Seidov, Jun 22 2005
STATUS
approved