21323342211 has 8 divisors (see below), whose sum is σ = 29927497920. Its totient is φ = 13467373992.

The previous prime is 21323342189. The next prime is 21323342221. The reversal of 21323342211 is 11224332312.

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

It is not a de Polignac number, because 21323342211 - 2⁶ = 21323342147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21323342221) 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, 187046805 + ... + 187046918.

It is an arithmetic number, because the mean of its divisors is an integer number (3740937240).

Almost surely, 2^21323342211 is an apocalyptic number.

21323342211 is a deficient number, since it is larger than the sum of its proper divisors (8604155709).

21323342211 is a wasteful number, since it uses less digits than its factorization.

21323342211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374093745.

The product of its digits is 1728, while the sum is 24.

Adding to 21323342211 its reverse (11224332312), we get a palindrome (32547674523).

The spelling of 21323342211 in words is "twenty-one billion, three hundred twenty-three million, three hundred forty-two thousand, two hundred eleven".