211110020321 has 16 divisors (see below), whose sum is σ = 214260292608. Its totient is φ = 207983160000.

The previous prime is 211110020299. The next prime is 211110020369. The reversal of 211110020321 is 123020011112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211110020321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211110020296 and 211110020305.

It is not an unprimeable number, because it can be changed into a prime (211110020521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17155871 + ... + 17168171.

It is an arithmetic number, because the mean of its divisors is an integer number (13391268288).

Almost surely, 2^211110020321 is an apocalyptic number.

It is an amenable number.

211110020321 is a deficient number, since it is larger than the sum of its proper divisors (3150272287).

211110020321 is a wasteful number, since it uses less digits than its factorization.

211110020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13232.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211110020321 its reverse (123020011112), we get a palindrome (334130031433).

The spelling of 211110020321 in words is "two hundred eleven billion, one hundred ten million, twenty thousand, three hundred twenty-one".