211230110321 has 4 divisors (see below), whose sum is σ = 216142438512. Its totient is φ = 206317782132.

The previous prime is 211230110257. The next prime is 211230110363. The reversal of 211230110321 is 123011032112.

211230110321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211230110321 - 2⁶ = 211230110257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211230110321.

It is not an unprimeable number, because it can be changed into a prime (211230115321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456164031 + ... + 2456164116.

It is an arithmetic number, because the mean of its divisors is an integer number (54035609628).

Almost surely, 2^211230110321 is an apocalyptic number.

It is an amenable number.

211230110321 is a deficient number, since it is larger than the sum of its proper divisors (4912328191).

211230110321 is an equidigital number, since it uses as much as digits as its factorization.

211230110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912328190.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211230110321 its reverse (123011032112), we get a palindrome (334241142433).

The spelling of 211230110321 in words is "two hundred eleven billion, two hundred thirty million, one hundred ten thousand, three hundred twenty-one".