21323323221011 has 8 divisors (see below), whose sum is σ = 24963890600544. Its totient is φ = 17831350428480.

The previous prime is 21323323220977. The next prime is 21323323221059. The reversal of 21323323221011 is 11012232332312.

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

It is a cyclic number.

It is not a de Polignac number, because 21323323221011 - 2⁴² = 16925276709907 is a prime.

It is a super-3 number, since 3×21323323221011³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (21323323221071) 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, 37148646440 + ... + 37148647013.

It is an arithmetic number, because the mean of its divisors is an integer number (3120486325068).

Almost surely, 2^{21323323221011} is an apocalyptic number.

21323323221011 is a deficient number, since it is larger than the sum of its proper divisors (3640567379533).

21323323221011 is an equidigital number, since it uses as much as digits as its factorization.

21323323221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74297293501.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21323323221011 its reverse (11012232332312), we get a palindrome (32335555553323).

The spelling of 21323323221011 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred twenty-three million, two hundred twenty-one thousand, eleven".