21320000211 has 8 divisors (see below), whose sum is σ = 28708119504. Its totient is φ = 14072607200.

The previous prime is 21320000197. The next prime is 21320000239. The reversal of 21320000211 is 11200002312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21320000211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21320080211) 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 7 ways as a sum of consecutive naturals, for example, 35181216 + ... + 35181821.

It is an arithmetic number, because the mean of its divisors is an integer number (3588514938).

Almost surely, 2^21320000211 is an apocalyptic number.

21320000211 is a deficient number, since it is larger than the sum of its proper divisors (7388119293).

21320000211 is a wasteful number, since it uses less digits than its factorization.

21320000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70363141.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21320000211 its reverse (11200002312), we get a palindrome (32520002523).

The spelling of 21320000211 in words is "twenty-one billion, three hundred twenty million, two hundred eleven", and thus it is an aban number.