2311122313111 has 16 divisors (see below), whose sum is σ = 2428723123200. Its totient is φ = 2196293702400.

The previous prime is 2311122313081. The next prime is 2311122313117. The reversal of 2311122313111 is 1113132211132.

It is a cyclic number.

It is not a de Polignac number, because 2311122313111 - 2²³ = 2311113924503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311122313117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019056 + ... + 2379226.

It is an arithmetic number, because the mean of its divisors is an integer number (151795195200).

Almost surely, 2^{2311122313111} is an apocalyptic number.

2311122313111 is a deficient number, since it is larger than the sum of its proper divisors (117600810089).

2311122313111 is a wasteful number, since it uses less digits than its factorization.

2311122313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361190.

The product of its digits is 216, while the sum is 22.

Adding to 2311122313111 its reverse (1113132211132), we get a palindrome (3424254524243).

The spelling of 2311122313111 in words is "two trillion, three hundred eleven billion, one hundred twenty-two million, three hundred thirteen thousand, one hundred eleven".