It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1311006247 is a prime.
It is a congruent number.
Almost surely, 21311006247 is an apocalyptic number.
1311006247 is an equidigital number, since it uses as much as digits as its factorization.
1311006247 is an odious number, because the sum of its binary digits is odd.
The square root of 1311006247 is about 36207.8202464606. The cubic root of 1311006247 is about 1094.4642673082.
Adding to 1311006247 its reverse (7426001131), we get a palindrome (8737007378).
The spelling of 1311006247 in words is "one billion, three hundred eleven million, six thousand, two hundred forty-seven".