21443034030000 has 800 divisors, whose sum is σ = 79156703146752. Its totient is φ = 4953446400000.

The previous prime is 21443034029987. The next prime is 21443034030001. The reversal of 21443034030000 is 3043034412.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21443034030001) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 581771572 + ... + 581808428.

Almost surely, 2^{21443034030000} is an apocalyptic number.

21443034030000 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 21443034030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39578351573376).

21443034030000 is an abundant number, since it is smaller than the sum of its proper divisors (57713669116752).

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

21443034030000 is a wasteful number, since it uses less digits than its factorization.

21443034030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36983 (or 36962 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21443034030000 its reverse (3043034412), we get a palindrome (21446077064412).

The spelling of 21443034030000 in words is "twenty-one trillion, four hundred forty-three billion, thirty-four million, thirty thousand".