1311030113 has 2 divisors, whose sum is σ = 1311030114. Its totient is φ = 1311030112.

The previous prime is 1311030047. The next prime is 1311030151. The reversal of 1311030113 is 3110301131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 890903104 + 420127009 = 29848^2 + 20497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311030113 - 2²² = 1306835809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1311030163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655515056 + 655515057.

It is an arithmetic number, because the mean of its divisors is an integer number (655515057).

Almost surely, 2^1311030113 is an apocalyptic number.

It is an amenable number.

1311030113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311030113 is an equidigital number, since it uses as much as digits as its factorization.

1311030113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1311030113 is about 36208.1498146481. The cubic root of 1311030113 is about 1094.4709086001.

Adding to 1311030113 its reverse (3110301131), we get a palindrome (4421331244).

The spelling of 1311030113 in words is "one billion, three hundred eleven million, thirty thousand, one hundred thirteen".