This is a PRP value of the Ramanujan Tau function.
http://dx.doi.org/10.1007/s11139-012-9420-8
http://www.wolframalpha.com/input/?i=-RamanujanTau[103^14938]

3-PRP according to PFGW

Passed the Baillie-PSW primality test with Pari/GP, in 9h 53m.

To be completed...