11420311211 has 2 divisors, whose sum is σ = 11420311212. Its totient is φ = 11420311210.

The previous prime is 11420311193. The next prime is 11420311241. The reversal of 11420311211 is 11211302411.

11420311211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11420311211 - 2¹⁴ = 11420294827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11420311211.

It is not a weakly prime, because it can be changed into another prime (11420311241) 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, 5710155605 + 5710155606.

It is an arithmetic number, because the mean of its divisors is an integer number (5710155606).

Almost surely, 2^11420311211 is an apocalyptic number.

11420311211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420311211 is an equidigital number, since it uses as much as digits as its factorization.

11420311211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11420311211 its reverse (11211302411), we get a palindrome (22631613622).

The spelling of 11420311211 in words is "eleven billion, four hundred twenty million, three hundred eleven thousand, two hundred eleven".