Alright, I'll explain.
First: It's a PALINDROMIC number. (Reads same either way)
Second: It's a PRIME number. (Divisible only by itself and 1- check it out!)
Third: 2 groups of 13 zeroes. (So it's doubly unlucky!)
Fourth: That's the Sign of the Beast - "666" - in the middle!
Known as "Belphegor's Prime"
Now Google "Belphegor" - and tremble!
(G-Man asked for 55 apocalyptic words for his on-going FFF55. This was the best I could do.)