211322111311 has 2 divisors, whose sum is σ = 211322111312. Its totient is φ = 211322111310.

The previous prime is 211322111303. The next prime is 211322111323. The reversal of 211322111311 is 113111223112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211322111311 - 2³ = 211322111303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211322111911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661055655 + 105661055656.

It is an arithmetic number, because the mean of its divisors is an integer number (105661055656).

Almost surely, 2^211322111311 is an apocalyptic number.

211322111311 is a deficient number, since it is larger than the sum of its proper divisors (1).

211322111311 is an equidigital number, since it uses as much as digits as its factorization.

211322111311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 19.

Adding to 211322111311 its reverse (113111223112), we get a palindrome (324433334423).

The spelling of 211322111311 in words is "two hundred eleven billion, three hundred twenty-two million, one hundred eleven thousand, three hundred eleven".