1311003323011 has 2 divisors, whose sum is σ = 1311003323012. Its totient is φ = 1311003323010.

The previous prime is 1311003322987. The next prime is 1311003323053. The reversal of 1311003323011 is 1103233001131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311003323011 - 2¹⁹ = 1311002798723 is a prime.

It is a super-2 number, since 2×1311003323011² (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 1311003323011.

It is not a weakly prime, because it can be changed into another prime (1311003321011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655501661505 + 655501661506.

It is an arithmetic number, because the mean of its divisors is an integer number (655501661506).

Almost surely, 2^{1311003323011} is an apocalyptic number.

1311003323011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311003323011 is an equidigital number, since it uses as much as digits as its factorization.

1311003323011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1311003323011 its reverse (1103233001131), we get a palindrome (2414236324142).

The spelling of 1311003323011 in words is "one trillion, three hundred eleven billion, three million, three hundred twenty-three thousand, eleven".