211303322213 has 4 divisors (see below), whose sum is σ = 223732929420. Its totient is φ = 198873715008.

The previous prime is 211303322147. The next prime is 211303322233. The reversal of 211303322213 is 312223303112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85478462689 + 125824859524 = 292367^2 + 354718^2 .

It is not a de Polignac number, because 211303322213 - 2¹² = 211303318117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211303322233) 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 3 ways as a sum of consecutive naturals, for example, 6214803578 + ... + 6214803611.

It is an arithmetic number, because the mean of its divisors is an integer number (55933232355).

Almost surely, 2^211303322213 is an apocalyptic number.

It is an amenable number.

211303322213 is a deficient number, since it is larger than the sum of its proper divisors (12429607207).

211303322213 is a wasteful number, since it uses less digits than its factorization.

211303322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12429607206.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 211303322213 its reverse (312223303112), we get a palindrome (523526625325).

The spelling of 211303322213 in words is "two hundred eleven billion, three hundred three million, three hundred twenty-two thousand, two hundred thirteen".