22534434431 has 4 divisors (see below), whose sum is σ = 22534962672. Its totient is φ = 22533906192.

The previous prime is 22534434367. The next prime is 22534434443. The reversal of 22534434431 is 13443443522.

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 22534434431 - 2⁶ = 22534434367 is a prime.

It is a super-2 number, since 2×22534434431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22534434391 and 22534434400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22534434631) 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, 193910 + ... + 287523.

It is an arithmetic number, because the mean of its divisors is an integer number (5633740668).

Almost surely, 2^22534434431 is an apocalyptic number.

22534434431 is a deficient number, since it is larger than the sum of its proper divisors (528241).

22534434431 is an equidigital number, since it uses as much as digits as its factorization.

22534434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528240.

The product of its digits is 138240, while the sum is 35.

Adding to 22534434431 its reverse (13443443522), we get a palindrome (35977877953).

Subtracting from 22534434431 its reverse (13443443522), we obtain a palindrome (9090990909).

The spelling of 22534434431 in words is "twenty-two billion, five hundred thirty-four million, four hundred thirty-four thousand, four hundred thirty-one".