22143144143 has 4 divisors (see below), whose sum is σ = 22506146568. Its totient is φ = 21780141720.

The previous prime is 22143144139. The next prime is 22143144157. The reversal of 22143144143 is 34144134122.

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 22143144143 - 2² = 22143144139 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 (22143144173) 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, 181501121 + ... + 181501242.

It is an arithmetic number, because the mean of its divisors is an integer number (5626536642).

Almost surely, 2^22143144143 is an apocalyptic number.

22143144143 is a deficient number, since it is larger than the sum of its proper divisors (363002425).

22143144143 is an equidigital number, since it uses as much as digits as its factorization.

22143144143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363002424.

The product of its digits is 9216, while the sum is 29.

Adding to 22143144143 its reverse (34144134122), we get a palindrome (56287278265).

The spelling of 22143144143 in words is "twenty-two billion, one hundred forty-three million, one hundred forty-four thousand, one hundred forty-three".