20044432002143 has 4 divisors (see below), whose sum is σ = 20047732589808. Its totient is φ = 20041131414480.

The previous prime is 20044432002109. The next prime is 20044432002187. The reversal of 20044432002143 is 34120023444002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20044432002143 - 2¹² = 20044431998047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044432002043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1650284723 + ... + 1650296868.

It is an arithmetic number, because the mean of its divisors is an integer number (5011933147452).

Almost surely, 2^{20044432002143} is an apocalyptic number.

20044432002143 is a deficient number, since it is larger than the sum of its proper divisors (3300587665).

20044432002143 is an equidigital number, since it uses as much as digits as its factorization.

20044432002143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300587664.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20044432002143 its reverse (34120023444002), we get a palindrome (54164455446145).

The spelling of 20044432002143 in words is "twenty trillion, forty-four billion, four hundred thirty-two million, two thousand, one hundred forty-three".