21041143020234 has 128 divisors (see below), whose sum is σ = 47416682016000. Its totient is φ = 6915397192704.

The previous prime is 21041143020229. The next prime is 21041143020241. The reversal of 21041143020234 is 43202034114012.

21041143020234 is a `hidden beast` number, since 2 + 1 + 0 + 411 + 43 + 0 + 202 + 3 + 4 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21041143020198 and 21041143020207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3136252872 + ... + 3136259580.

It is an arithmetic number, because the mean of its divisors is an integer number (370442828250).

Almost surely, 2^{21041143020234} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21041143020234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23708341008000).

21041143020234 is an abundant number, since it is smaller than the sum of its proper divisors (26375538995766).

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

21041143020234 is a wasteful number, since it uses less digits than its factorization.

21041143020234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549 (or 8543 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21041143020234 its reverse (43202034114012), we get a palindrome (64243177134246).

The spelling of 21041143020234 in words is "twenty-one trillion, forty-one billion, one hundred forty-three million, twenty thousand, two hundred thirty-four".