211112020321 has 2 divisors, whose sum is σ = 211112020322. Its totient is φ = 211112020320.

The previous prime is 211112020303. The next prime is 211112020333. The reversal of 211112020321 is 123020211112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120895290000 + 90216730321 = 347700^2 + 300361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211112020321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211112020295 and 211112020304.

It is not a weakly prime, because it can be changed into another prime (211112020421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556010160 + 105556010161.

It is an arithmetic number, because the mean of its divisors is an integer number (105556010161).

Almost surely, 2^211112020321 is an apocalyptic number.

It is an amenable number.

211112020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112020321 is an equidigital number, since it uses as much as digits as its factorization.

211112020321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211112020321 its reverse (123020211112), we get a palindrome (334132231433).

The spelling of 211112020321 in words is "two hundred eleven billion, one hundred twelve million, twenty thousand, three hundred twenty-one".