20044021343 has 4 divisors (see below), whose sum is σ = 21223081440. Its totient is φ = 18864961248.

The previous prime is 20044021337. The next prime is 20044021351. The reversal of 20044021343 is 34312044002.

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 20044021343 - 2⁸ = 20044021087 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 (20044021373) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 589530023 + ... + 589530056.

It is an arithmetic number, because the mean of its divisors is an integer number (5305770360).

Almost surely, 2^20044021343 is an apocalyptic number.

20044021343 is a deficient number, since it is larger than the sum of its proper divisors (1179060097).

20044021343 is a wasteful number, since it uses less digits than its factorization.

20044021343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179060096.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20044021343 its reverse (34312044002), we get a palindrome (54356065345).

The spelling of 20044021343 in words is "twenty billion, forty-four million, twenty-one thousand, three hundred forty-three".