21323323333000 has 128 divisors (see below), whose sum is σ = 53745662355840. Its totient is φ = 7871631840000.

The previous prime is 21323323332989. The next prime is 21323323333019. The reversal of 21323323333000 is 33332332312.

It is a self number, because there is not a number n which added to its sum of digits gives 21323323333000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64979335 + ... + 65306665.

It is an arithmetic number, because the mean of its divisors is an integer number (419887987155).

Almost surely, 2^{21323323333000} is an apocalyptic number.

21323323333000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21323323333000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26872831177920).

21323323333000 is an abundant number, since it is smaller than the sum of its proper divisors (32422339022840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21323323333000 is a wasteful number, since it uses less digits than its factorization.

21323323333000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332376 (or 332362 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 28.

Adding to 21323323333000 its reverse (33332332312), we get a palindrome (21356655665312).

The spelling of 21323323333000 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred twenty-three million, three hundred thirty-three thousand".