This number is a prime.
As a final note on the sonnets of William Shakespeare, he uses the word "prime" exactly 4 times in the 154 sonnets. These are sonnets number 3, 12, 70, and 97. Concatenate these four integers, and one gets 3127097. This is a prime number. Coincidence? Consider that the reversal of this prime is 7907213 -- and that is also a prime. Hence, by this structure of placing the word "prime" to provide a 7-digit emirp, I like to think that he knew more mathematics than he's usually given credit! [Post]