21443012424041 has 16 divisors (see below), whose sum is σ = 23331188270208. Its totient is φ = 19588949798400.

The previous prime is 21443012424019. The next prime is 21443012424049. The reversal of 21443012424041 is 14042421034412.

It is a cyclic number.

It is not a de Polignac number, because 21443012424041 - 2²² = 21443008229737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21443012423989 and 21443012424007.

It is not an unprimeable number, because it can be changed into a prime (21443012424049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49430876 + ... + 49862786.

It is an arithmetic number, because the mean of its divisors is an integer number (1458199266888).

Almost surely, 2^{21443012424041} is an apocalyptic number.

It is an amenable number.

21443012424041 is a deficient number, since it is larger than the sum of its proper divisors (1888175846167).

21443012424041 is a wasteful number, since it uses less digits than its factorization.

21443012424041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471392.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 21443012424041 its reverse (14042421034412), we get a palindrome (35485433458453).

The spelling of 21443012424041 in words is "twenty-one trillion, four hundred forty-three billion, twelve million, four hundred twenty-four thousand, forty-one".