1311630315263 has 2 divisors, whose sum is σ = 1311630315264. Its totient is φ = 1311630315262.

The previous prime is 1311630315227. The next prime is 1311630315277. The reversal of 1311630315263 is 3625130361131.

It is a strong prime.

It is an emirp because it is prime and its reverse (3625130361131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311630315263 - 2³⁸ = 1036752408319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311630315283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655815157631 + 655815157632.

It is an arithmetic number, because the mean of its divisors is an integer number (655815157632).

Almost surely, 2^{1311630315263} is an apocalyptic number.

1311630315263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311630315263 is an equidigital number, since it uses as much as digits as its factorization.

1311630315263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

Adding to 1311630315263 its reverse (3625130361131), we get a palindrome (4936760676394).

The spelling of 1311630315263 in words is "one trillion, three hundred eleven billion, six hundred thirty million, three hundred fifteen thousand, two hundred sixty-three".