1311143313331 has 2 divisors, whose sum is σ = 1311143313332. Its totient is φ = 1311143313330.

The previous prime is 1311143313317. The next prime is 1311143313343. The reversal of 1311143313331 is 1333133411131.

It is a strong prime.

It is an emirp because it is prime and its reverse (1333133411131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311143313331 - 2⁹ = 1311143312819 is a prime.

It is a super-2 number, since 2×1311143313331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311143313331.

It is not a weakly prime, because it can be changed into another prime (1311143319331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655571656665 + 655571656666.

It is an arithmetic number, because the mean of its divisors is an integer number (655571656666).

Almost surely, 2^{1311143313331} is an apocalyptic number.

1311143313331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311143313331 is an equidigital number, since it uses as much as digits as its factorization.

1311143313331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 28.

Adding to 1311143313331 its reverse (1333133411131), we get a palindrome (2644276724462).

The spelling of 1311143313331 in words is "one trillion, three hundred eleven billion, one hundred forty-three million, three hundred thirteen thousand, three hundred thirty-one".