2011322311 has 4 divisors (see below), whose sum is σ = 2117181400. Its totient is φ = 1905463224.

The previous prime is 2011322267. The next prime is 2011322321. The reversal of 2011322311 is 1132231102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2011322311 - 2²¹ = 2009225159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011322321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52929516 + ... + 52929553.

It is an arithmetic number, because the mean of its divisors is an integer number (529295350).

Almost surely, 2^2011322311 is an apocalyptic number.

2011322311 is a deficient number, since it is larger than the sum of its proper divisors (105859089).

2011322311 is a wasteful number, since it uses less digits than its factorization.

2011322311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105859088.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2011322311 is about 44847.7681830434. The cubic root of 2011322311 is about 1262.2941137452.

Adding to 2011322311 its reverse (1132231102), we get a palindrome (3143553413).

It can be divided in two parts, 20113 and 22311, that added together give a palindrome (42424).

The spelling of 2011322311 in words is "two billion, eleven million, three hundred twenty-two thousand, three hundred eleven".