211300322231 has 4 divisors (see below), whose sum is σ = 211305764472. Its totient is φ = 211294879992.

The previous prime is 211300322209. The next prime is 211300322243. The reversal of 211300322231 is 132223003112.

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

It is a cyclic number.

It is not a de Polignac number, because 211300322231 - 2²² = 211296127927 is a prime.

It is a super-2 number, since 2×211300322231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211300322281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662460 + ... + 2740673.

It is an arithmetic number, because the mean of its divisors is an integer number (52826441118).

Almost surely, 2^211300322231 is an apocalyptic number.

211300322231 is a deficient number, since it is larger than the sum of its proper divisors (5442241).

211300322231 is an equidigital number, since it uses as much as digits as its factorization.

211300322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442240.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211300322231 its reverse (132223003112), we get a palindrome (343523325343).

The spelling of 211300322231 in words is "two hundred eleven billion, three hundred million, three hundred twenty-two thousand, two hundred thirty-one".