211000330321 has 4 divisors (see below), whose sum is σ = 230182178544. Its totient is φ = 191818482100.

The previous prime is 211000330313. The next prime is 211000330327. The reversal of 211000330321 is 123033000112.

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 211000330321 - 2³ = 211000330313 is a prime.

It is a super-2 number, since 2×211000330321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211000330295 and 211000330304.

It is not an unprimeable number, because it can be changed into a prime (211000330327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9590924095 + ... + 9590924116.

It is an arithmetic number, because the mean of its divisors is an integer number (57545544636).

Almost surely, 2^211000330321 is an apocalyptic number.

It is an amenable number.

211000330321 is a deficient number, since it is larger than the sum of its proper divisors (19181848223).

211000330321 is a wasteful number, since it uses less digits than its factorization.

211000330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19181848222.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 211000330321 its reverse (123033000112), we get a palindrome (334033330433).

The spelling of 211000330321 in words is "two hundred eleven billion, three hundred thirty thousand, three hundred twenty-one".