211231355411 has 2 divisors, whose sum is σ = 211231355412. Its totient is φ = 211231355410.

The previous prime is 211231355371. The next prime is 211231355441. The reversal of 211231355411 is 114553132112.

It is a happy number.

211231355411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211231355411 - 2³⁴ = 194051486227 is a prime.

It is not a weakly prime, because it can be changed into another prime (211231355441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615677705 + 105615677706.

It is an arithmetic number, because the mean of its divisors is an integer number (105615677706).

Almost surely, 2^211231355411 is an apocalyptic number.

211231355411 is a deficient number, since it is larger than the sum of its proper divisors (1).

211231355411 is an equidigital number, since it uses as much as digits as its factorization.

211231355411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

Adding to 211231355411 its reverse (114553132112), we get a palindrome (325784487523).

The spelling of 211231355411 in words is "two hundred eleven billion, two hundred thirty-one million, three hundred fifty-five thousand, four hundred eleven".