1311122311011 has 8 divisors (see below), whose sum is σ = 1942403423760. Its totient is φ = 874081540656.

The previous prime is 1311122310937. The next prime is 1311122311013. The reversal of 1311122311011 is 1101132211131.

It is not a de Polignac number, because 1311122311011 - 2¹⁸ = 1311122048867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311122311013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24280042770 + ... + 24280042823.

It is an arithmetic number, because the mean of its divisors is an integer number (242800427970).

Almost surely, 2^{1311122311011} is an apocalyptic number.

1311122311011 is a deficient number, since it is larger than the sum of its proper divisors (631281112749).

1311122311011 is an equidigital number, since it uses as much as digits as its factorization.

1311122311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48560085602 (or 48560085596 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1311122311011 its reverse (1101132211131), we get a palindrome (2412254522142).

The spelling of 1311122311011 in words is "one trillion, three hundred eleven billion, one hundred twenty-two million, three hundred eleven thousand, eleven".