20224423143 has 8 divisors (see below), whose sum is σ = 29962108400. Its totient is φ = 13482948744.

The previous prime is 20224423111. The next prime is 20224423151. The reversal of 20224423143 is 34132442202.

20224423143 is a `hidden beast` number, since 2 + 0 + 224 + 423 + 14 + 3 = 666.

It is not a de Polignac number, because 20224423143 - 2⁵ = 20224423111 is a prime.

It is a super-2 number, since 2×20224423143² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 749052709 = 20224423143 / (2 + 0 + 2 + 2 + 4 + 4 + 2 + 3 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25224423143) 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 7 ways as a sum of consecutive naturals, for example, 374526328 + ... + 374526381.

It is an arithmetic number, because the mean of its divisors is an integer number (3745263550).

Almost surely, 2^20224423143 is an apocalyptic number.

20224423143 is a deficient number, since it is larger than the sum of its proper divisors (9737685257).

20224423143 is an equidigital number, since it uses as much as digits as its factorization.

20224423143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749052718 (or 749052712 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20224423143 its reverse (34132442202), we get a palindrome (54356865345).

The spelling of 20224423143 in words is "twenty billion, two hundred twenty-four million, four hundred twenty-three thousand, one hundred forty-three".