11143422143 has 4 divisors (see below), whose sum is σ = 12735339600. Its totient is φ = 9551504688.

The previous prime is 11143422079. The next prime is 11143422149. The reversal of 11143422143 is 34122434111.

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 11143422143 - 2⁶ = 11143422079 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 (11143422149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795958718 + ... + 795958731.

It is an arithmetic number, because the mean of its divisors is an integer number (3183834900).

Almost surely, 2^11143422143 is an apocalyptic number.

11143422143 is a deficient number, since it is larger than the sum of its proper divisors (1591917457).

11143422143 is an equidigital number, since it uses as much as digits as its factorization.

11143422143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591917456.

The product of its digits is 2304, while the sum is 26.

Adding to 11143422143 its reverse (34122434111), we get a palindrome (45265856254).

The spelling of 11143422143 in words is "eleven billion, one hundred forty-three million, four hundred twenty-two thousand, one hundred forty-three".