1311122311233 has 16 divisors (see below), whose sum is σ = 2000648832000. Its totient is φ = 748182186576.

The previous prime is 1311122311223. The next prime is 1311122311253. The reversal of 1311122311233 is 3321132211131.

It is not a de Polignac number, because 1311122311233 - 2⁵ = 1311122311201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311122311223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42924483 + ... + 42955016.

It is an arithmetic number, because the mean of its divisors is an integer number (125040552000).

Almost surely, 2^{1311122311233} is an apocalyptic number.

It is an amenable number.

1311122311233 is a deficient number, since it is larger than the sum of its proper divisors (689526520767).

1311122311233 is an equidigital number, since it uses as much as digits as its factorization.

1311122311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85880236.

The product of its digits is 648, while the sum is 24.

Adding to 1311122311233 its reverse (3321132211131), we get a palindrome (4632254522364).

The spelling of 1311122311233 in words is "one trillion, three hundred eleven billion, one hundred twenty-two million, three hundred eleven thousand, two hundred thirty-three".