20039510143 has 2 divisors, whose sum is σ = 20039510144. Its totient is φ = 20039510142.

The previous prime is 20039510137. The next prime is 20039510167. The reversal of 20039510143 is 34101593002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20039510143 - 2⁵ = 20039510111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20039510243) 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, 10019755071 + 10019755072.

It is an arithmetic number, because the mean of its divisors is an integer number (10019755072).

Almost surely, 2^20039510143 is an apocalyptic number.

20039510143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20039510143 is an equidigital number, since it uses as much as digits as its factorization.

20039510143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 20039510143 in words is "twenty billion, thirty-nine million, five hundred ten thousand, one hundred forty-three".