210312321211 has 2 divisors, whose sum is σ = 210312321212. Its totient is φ = 210312321210.

The previous prime is 210312321209. The next prime is 210312321217. The reversal of 210312321211 is 112123213012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210312321211 - 2¹ = 210312321209 is a prime.

Together with 210312321209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (210312321217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105156160605 + 105156160606.

It is an arithmetic number, because the mean of its divisors is an integer number (105156160606).

Almost surely, 2^210312321211 is an apocalyptic number.

210312321211 is a deficient number, since it is larger than the sum of its proper divisors (1).

210312321211 is an equidigital number, since it uses as much as digits as its factorization.

210312321211 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 210312321211 its reverse (112123213012), we get a palindrome (322435534223).

The spelling of 210312321211 in words is "two hundred ten billion, three hundred twelve million, three hundred twenty-one thousand, two hundred eleven".