2111022312311 has 6 divisors (see below), whose sum is σ = 2320379897136. Its totient is φ = 1919111192900.

The previous prime is 2111022312299. The next prime is 2111022312317. The reversal of 2111022312311 is 1132132201112.

It is not a de Polignac number, because 2111022312311 - 2²⁶ = 2110955203447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111022312317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8723232575 + ... + 8723232816.

It is an arithmetic number, because the mean of its divisors is an integer number (386729982856).

Almost surely, 2^{2111022312311} is an apocalyptic number.

2111022312311 is a deficient number, since it is larger than the sum of its proper divisors (209357584825).

2111022312311 is a wasteful number, since it uses less digits than its factorization.

2111022312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446465413 (or 17446465402 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2111022312311 its reverse (1132132201112), we get a palindrome (3243154513423).

The spelling of 2111022312311 in words is "two trillion, one hundred eleven billion, twenty-two million, three hundred twelve thousand, three hundred eleven".