20104430143 has 16 divisors (see below), whose sum is σ = 23189022720. Its totient is φ = 17073092736.

The previous prime is 20104430123. The next prime is 20104430147. The reversal of 20104430143 is 34103440102.

It is not a de Polignac number, because 20104430143 - 2²⁵ = 20070875711 is a prime.

It is a super-2 number, since 2×20104430143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104430147) 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, 3888346 + ... + 3893512.

It is an arithmetic number, because the mean of its divisors is an integer number (1449313920).

Almost surely, 2^20104430143 is an apocalyptic number.

20104430143 is a deficient number, since it is larger than the sum of its proper divisors (3084592577).

20104430143 is a wasteful number, since it uses less digits than its factorization.

20104430143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10206.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20104430143 its reverse (34103440102), we get a palindrome (54207870245).

The spelling of 20104430143 in words is "twenty billion, one hundred four million, four hundred thirty thousand, one hundred forty-three".