21323022336000 has 2432 divisors, whose sum is σ = 98617629726720. Its totient is φ = 4416602112000.

The previous prime is 21323022335969. The next prime is 21323022336097. The reversal of 21323022336000 is 63322032312.

21323022336000 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 3 + 0 + 22 + 33 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 68124671844 + ... + 68124672156.

Almost surely, 2^{21323022336000} is an apocalyptic number.

21323022336000 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 21323022336000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49308814863360).

21323022336000 is an abundant number, since it is smaller than the sum of its proper divisors (77294607390720).

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

21323022336000 is an frugal number, since it uses more digits than its factorization.

21323022336000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21323022336000 its reverse (63322032312), we get a palindrome (21386344368312).

The spelling of 21323022336000 in words is "twenty-one trillion, three hundred twenty-three billion, twenty-two million, three hundred thirty-six thousand".