21323333020000 has 240 divisors, whose sum is σ = 57678247452672. Its totient is φ = 7692874560000.

The previous prime is 21323333019991. The next prime is 21323333020007. The reversal of 21323333020000 is 2033332312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323333020007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27558409 + ... + 28321591.

Almost surely, 2^{21323333020000} is an apocalyptic number.

21323333020000 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 21323333020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28839123726336).

21323333020000 is an abundant number, since it is smaller than the sum of its proper divisors (36354914432672).

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

21323333020000 is a wasteful number, since it uses less digits than its factorization.

21323333020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763351 (or 763328 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 21323333020000 its reverse (2033332312), we get a palindrome (21325366352312).

It can be divided in two parts, 213233 and 33020000, that added together give a palindrome (33233233).

The spelling of 21323333020000 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred thirty-three million, twenty thousand".