20321110211 has 8 divisors (see below), whose sum is σ = 20653040784. Its totient is φ = 19991743200.

The previous prime is 20321110193. The next prime is 20321110241. The reversal of 20321110211 is 11201112302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20321110211 - 2²² = 20316915907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321110241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624905 + ... + 656618.

It is an arithmetic number, because the mean of its divisors is an integer number (2581630098).

Almost surely, 2^20321110211 is an apocalyptic number.

20321110211 is a deficient number, since it is larger than the sum of its proper divisors (331930573).

20321110211 is a wasteful number, since it uses less digits than its factorization.

20321110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281781.

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

Adding to 20321110211 its reverse (11201112302), we get a palindrome (31522222513).

The spelling of 20321110211 in words is "twenty billion, three hundred twenty-one million, one hundred ten thousand, two hundred eleven".