21443302141000 has 128 divisors (see below), whose sum is σ = 51035220288000. Its totient is φ = 8430714816000.

The previous prime is 21443302140989. The next prime is 21443302141021. The reversal of 21443302141000 is 14120334412.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 478526596 + ... + 478571404.

It is an arithmetic number, because the mean of its divisors is an integer number (398712658500).

Almost surely, 2^{21443302141000} is an apocalyptic number.

21443302141000 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 21443302141000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25517610144000).

21443302141000 is an abundant number, since it is smaller than the sum of its proper divisors (29591918147000).

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

21443302141000 is a wasteful number, since it uses less digits than its factorization.

21443302141000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53000 (or 52986 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21443302141000 its reverse (14120334412), we get a palindrome (21457422475412).

The spelling of 21443302141000 in words is "twenty-one trillion, four hundred forty-three billion, three hundred two million, one hundred forty-one thousand".