20304024143 has 4 divisors (see below), whose sum is σ = 21865872168. Its totient is φ = 18742176120.

The previous prime is 20304024109. The next prime is 20304024217. The reversal of 20304024143 is 34142040302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20304024143 - 2³⁰ = 19230282319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304024043) 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 in 3 ways as a sum of consecutive naturals, for example, 780923993 + ... + 780924018.

It is an arithmetic number, because the mean of its divisors is an integer number (5466468042).

Almost surely, 2^20304024143 is an apocalyptic number.

20304024143 is a deficient number, since it is larger than the sum of its proper divisors (1561848025).

20304024143 is a wasteful number, since it uses less digits than its factorization.

20304024143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561848024.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20304024143 its reverse (34142040302), we get a palindrome (54446064445).

The spelling of 20304024143 in words is "twenty billion, three hundred four million, twenty-four thousand, one hundred forty-three".