22431236143 has 8 divisors (see below), whose sum is σ = 23754837168. Its totient is φ = 21108092544.

The previous prime is 22431236117. The next prime is 22431236159. The reversal of 22431236143 is 34163213422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22431236143 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 (22431336143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10696 + ... + 212077.

It is an arithmetic number, because the mean of its divisors is an integer number (2969354646).

Almost surely, 2^22431236143 is an apocalyptic number.

22431236143 is a deficient number, since it is larger than the sum of its proper divisors (1323601025).

22431236143 is a wasteful number, since it uses less digits than its factorization.

22431236143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228713.

The product of its digits is 20736, while the sum is 31.

Adding to 22431236143 its reverse (34163213422), we get a palindrome (56594449565).

The spelling of 22431236143 in words is "twenty-two billion, four hundred thirty-one million, two hundred thirty-six thousand, one hundred forty-three".