This number is a prime.
Just showing those entries submitted by 'Jacobs': (Click here to show all)
1327 is the first prime number such that there is more than one multiple of 16 between it and the next prime (1361). Surprisingly, there are 3 multiples of 16 between 1327 and 1361 (1328, 1344, and 1360). [Jacobs]