211311202213 has 2 divisors, whose sum is σ = 211311202214. Its totient is φ = 211311202212.

The previous prime is 211311202181. The next prime is 211311202253. The reversal of 211311202213 is 312202113112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191880793764 + 19430408449 = 438042^2 + 139393^2 .

It is a cyclic number.

It is not a de Polignac number, because 211311202213 - 2⁵ = 211311202181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211311202253) 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, 105655601106 + 105655601107.

It is an arithmetic number, because the mean of its divisors is an integer number (105655601107).

Almost surely, 2^211311202213 is an apocalyptic number.

It is an amenable number.

211311202213 is a deficient number, since it is larger than the sum of its proper divisors (1).

211311202213 is an equidigital number, since it uses as much as digits as its factorization.

211311202213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211311202213 its reverse (312202113112), we get a palindrome (523513315325).

The spelling of 211311202213 in words is "two hundred eleven billion, three hundred eleven million, two hundred two thousand, two hundred thirteen".