211442314321 has 16 divisors (see below), whose sum is σ = 255265561600. Its totient is φ = 171090782928.

The previous prime is 211442314319. The next prime is 211442314339. The reversal of 211442314321 is 123413244112.

It is a happy number.

211442314321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211442314321 - 2¹ = 211442314319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211442314321.

It is not an unprimeable number, because it can be changed into a prime (211442312321) 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 15 ways as a sum of consecutive naturals, for example, 2771181 + ... + 2846458.

It is an arithmetic number, because the mean of its divisors is an integer number (15954097600).

Almost surely, 2^211442314321 is an apocalyptic number.

It is an amenable number.

211442314321 is a deficient number, since it is larger than the sum of its proper divisors (43823247279).

211442314321 is a wasteful number, since it uses less digits than its factorization.

211442314321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617948.

The product of its digits is 4608, while the sum is 28.

Adding to 211442314321 its reverse (123413244112), we get a palindrome (334855558433).

The spelling of 211442314321 in words is "two hundred eleven billion, four hundred forty-two million, three hundred fourteen thousand, three hundred twenty-one".