20004305143 has 2 divisors, whose sum is σ = 20004305144. Its totient is φ = 20004305142.

The previous prime is 20004305129. The next prime is 20004305159. The reversal of 20004305143 is 34150340002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20004305143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20004305543) 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 as a sum of consecutive naturals, namely, 10002152571 + 10002152572.

It is an arithmetic number, because the mean of its divisors is an integer number (10002152572).

Almost surely, 2^20004305143 is an apocalyptic number.

20004305143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004305143 is an equidigital number, since it uses as much as digits as its factorization.

20004305143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20004305143 its reverse (34150340002), we get a palindrome (54154645145).

The spelling of 20004305143 in words is "twenty billion, four million, three hundred five thousand, one hundred forty-three".