1311120333311 has 2 divisors, whose sum is σ = 1311120333312. Its totient is φ = 1311120333310.

The previous prime is 1311120333287. The next prime is 1311120333317. The reversal of 1311120333311 is 1133330211131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311120333311 - 2¹⁸ = 1311120071167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311120333317) 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, 655560166655 + 655560166656.

It is an arithmetic number, because the mean of its divisors is an integer number (655560166656).

Almost surely, 2^{1311120333311} is an apocalyptic number.

1311120333311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311120333311 is an equidigital number, since it uses as much as digits as its factorization.

1311120333311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1311120333311 its reverse (1133330211131), we get a palindrome (2444450544442).

The spelling of 1311120333311 in words is "one trillion, three hundred eleven billion, one hundred twenty million, three hundred thirty-three thousand, three hundred eleven".