2211320311 has 2 divisors, whose sum is σ = 2211320312. Its totient is φ = 2211320310.

The previous prime is 2211320299. The next prime is 2211320359. The reversal of 2211320311 is 1130231122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2211320311 - 2⁷ = 2211320183 is a prime.

It is a super-2 number, since 2×2211320311² = 9779875035682273442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211320381) 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 as a sum of consecutive naturals, namely, 1105660155 + 1105660156.

It is an arithmetic number, because the mean of its divisors is an integer number (1105660156).

Almost surely, 2^2211320311 is an apocalyptic number.

2211320311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211320311 is an equidigital number, since it uses as much as digits as its factorization.

2211320311 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2211320311 is about 47024.6776809794. The cubic root of 2211320311 is about 1302.8184042097.

Adding to 2211320311 its reverse (1130231122), we get a palindrome (3341551433).

It can be divided in two parts, 22113 and 20311, that added together give a palindrome (42424).

The spelling of 2211320311 in words is "two billion, two hundred eleven million, three hundred twenty thousand, three hundred eleven".