1311041113 has 2 divisors, whose sum is σ = 1311041114. Its totient is φ = 1311041112.

The previous prime is 1311041063. The next prime is 1311041131. The reversal of 1311041113 is 3111401131.

Together with next prime (1311041131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 975125529 + 335915584 = 31227^2 + 18328^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311041113 - 2²⁵ = 1277486681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311041713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655520556 + 655520557.

It is an arithmetic number, because the mean of its divisors is an integer number (655520557).

Almost surely, 2^1311041113 is an apocalyptic number.

It is an amenable number.

1311041113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311041113 is an equidigital number, since it uses as much as digits as its factorization.

1311041113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1311041113 is about 36208.3017138335. The cubic root of 1311041113 is about 1094.4739695891.

Adding to 1311041113 its reverse (3111401131), we get a palindrome (4422442244).

The spelling of 1311041113 in words is "one billion, three hundred eleven million, forty-one thousand, one hundred thirteen".