20000002143 has 16 divisors (see below), whose sum is σ = 29639799936. Its totient is φ = 11892510240.

The previous prime is 20000002111. The next prime is 20000002157. The reversal of 20000002143 is 34120000002.

It is not a de Polignac number, because 20000002143 - 2⁵ = 20000002111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000002643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5715805 + ... + 5719302.

It is an arithmetic number, because the mean of its divisors is an integer number (1852487496).

Almost surely, 2^20000002143 is an apocalyptic number.

20000002143 is a deficient number, since it is larger than the sum of its proper divisors (9639797793).

20000002143 is a wasteful number, since it uses less digits than its factorization.

20000002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11435174.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20000002143 its reverse (34120000002), we get a palindrome (54120002145).

The spelling of 20000002143 in words is "twenty billion, two thousand, one hundred forty-three".