22531322143 has 8 divisors (see below), whose sum is σ = 24628496256. Its totient is φ = 20442293400.

The previous prime is 22531322129. The next prime is 22531322189. The reversal of 22531322143 is 34122313522.

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 not a de Polignac number, because 22531322143 - 2¹⁷ = 22531191071 is a prime.

It is a super-2 number, since 2×22531322143² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531322243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030553 + ... + 2041618.

It is an arithmetic number, because the mean of its divisors is an integer number (3078562032).

Almost surely, 2^22531322143 is an apocalyptic number.

22531322143 is a deficient number, since it is larger than the sum of its proper divisors (2097174113).

22531322143 is a wasteful number, since it uses less digits than its factorization.

22531322143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072685.

The product of its digits is 8640, while the sum is 28.

Adding to 22531322143 its reverse (34122313522), we get a palindrome (56653635665).

It can be divided in two parts, 225313 and 22143, that added together give a triangular number (247456 = T₇₀₃).

The spelling of 22531322143 in words is "twenty-two billion, five hundred thirty-one million, three hundred twenty-two thousand, one hundred forty-three".