211320203364 has 18 divisors (see below), whose sum is σ = 534170514150. Its totient is φ = 70440067776.

The previous prime is 211320203363. The next prime is 211320203389. The reversal of 211320203364 is 463302023112.

211320203364 is a `hidden beast` number, since 2 + 1 + 1 + 320 + 2 + 0 + 336 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 126401580900 + 84918622464 = 355530^2 + 291408^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (211320203363) 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 in 5 ways as a sum of consecutive naturals, for example, 2935002789 + ... + 2935002860.

It is an arithmetic number, because the mean of its divisors is an integer number (29676139675).

Almost surely, 2^211320203364 is an apocalyptic number.

It is an amenable number.

211320203364 is an abundant number, since it is smaller than the sum of its proper divisors (322850310786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211320203364 is a wasteful number, since it uses less digits than its factorization.

211320203364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870005659 (or 5870005654 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 211320203364 its reverse (463302023112), we get a palindrome (674622226476).

The spelling of 211320203364 in words is "two hundred eleven billion, three hundred twenty million, two hundred three thousand, three hundred sixty-four".