1311131167 has 2 divisors, whose sum is σ = 1311131168. Its totient is φ = 1311131166.

The previous prime is 1311131161. The next prime is 1311131221. The reversal of 1311131167 is 7611311131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7611311131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311131167 - 2⁷ = 1311131039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311131161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655565583 + 655565584.

It is an arithmetic number, because the mean of its divisors is an integer number (655565584).

Almost surely, 2^1311131167 is an apocalyptic number.

1311131167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311131167 is an equidigital number, since it uses as much as digits as its factorization.

1311131167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378, while the sum is 25.

The square root of 1311131167 is about 36209.5452470754. The cubic root of 1311131167 is about 1094.4990284275.

Adding to 1311131167 its reverse (7611311131), we get a palindrome (8922442298).

The spelling of 1311131167 in words is "one billion, three hundred eleven million, one hundred thirty-one thousand, one hundred sixty-seven".