20442241143 has 24 divisors (see below), whose sum is σ = 30768894000. Its totient is φ = 13062155904.

The previous prime is 20442241133. The next prime is 20442241153. The reversal of 20442241143 is 34114224402.

20442241143 is a `hidden beast` number, since 204 + 4 + 2 + 2 + 411 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (20442241133) and next prime (20442241153).

It is not a de Polignac number, because 20442241143 - 2²¹ = 20440143991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442241103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250093 + ... + 321606.

It is an arithmetic number, because the mean of its divisors is an integer number (1282037250).

Almost surely, 2^20442241143 is an apocalyptic number.

20442241143 is a deficient number, since it is larger than the sum of its proper divisors (10326652857).

20442241143 is a wasteful number, since it uses less digits than its factorization.

20442241143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571871 (or 571868 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20442241143 its reverse (34114224402), we get a palindrome (54556465545).

The spelling of 20442241143 in words is "twenty billion, four hundred forty-two million, two hundred forty-one thousand, one hundred forty-three".