20043343205 has 8 divisors (see below), whose sum is σ = 24087754392. Its totient is φ = 16010846208.

The previous prime is 20043343193. The next prime is 20043343237. The reversal of 20043343205 is 50234334002.

It can be written as a sum of positive squares in 4 ways, for example, as 5256540004 + 14786803201 = 72502^2 + 121601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20043343205 - 2⁶ = 20043343141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2974844 + ... + 2981573.

It is an arithmetic number, because the mean of its divisors is an integer number (3010969299).

Almost surely, 2^20043343205 is an apocalyptic number.

It is an amenable number.

20043343205 is a deficient number, since it is larger than the sum of its proper divisors (4044411187).

20043343205 is an equidigital number, since it uses as much as digits as its factorization.

20043343205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957095.

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 20043343205 its reverse (50234334002), we get a palindrome (70277677207).

The spelling of 20043343205 in words is "twenty billion, forty-three million, three hundred forty-three thousand, two hundred five".