2011343311 has 4 divisors (see below), whose sum is σ = 2011793112. Its totient is φ = 2010893512.

The previous prime is 2011343303. The next prime is 2011343359. The reversal of 2011343311 is 1133431102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1133431102 = 2 ⋅566715551.

It is a cyclic number.

It is not a de Polignac number, because 2011343311 - 2³ = 2011343303 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 (2011343381) 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, 218125 + ... + 227158.

It is an arithmetic number, because the mean of its divisors is an integer number (502948278).

Almost surely, 2^2011343311 is an apocalyptic number.

2011343311 is a deficient number, since it is larger than the sum of its proper divisors (449801).

2011343311 is an equidigital number, since it uses as much as digits as its factorization.

2011343311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449800.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2011343311 is about 44848.0023077952. The cubic root of 2011343311 is about 1262.2985068889.

Adding to 2011343311 its reverse (1133431102), we get a palindrome (3144774413).

The spelling of 2011343311 in words is "two billion, eleven million, three hundred forty-three thousand, three hundred eleven".