211336854823 has 2 divisors, whose sum is σ = 211336854824. Its totient is φ = 211336854822.

The previous prime is 211336854803. The next prime is 211336854877. The reversal of 211336854823 is 328458633112.

211336854823 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 211336854823 - 2³³ = 202746920231 is a prime.

It is a super-2 number, since 2×211336854823² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211336854803) 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, 105668427411 + 105668427412.

It is an arithmetic number, because the mean of its divisors is an integer number (105668427412).

Almost surely, 2^211336854823 is an apocalyptic number.

211336854823 is a deficient number, since it is larger than the sum of its proper divisors (1).

211336854823 is an equidigital number, since it uses as much as digits as its factorization.

211336854823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 46.

The spelling of 211336854823 in words is "two hundred eleven billion, three hundred thirty-six million, eight hundred fifty-four thousand, eight hundred twenty-three".