12423434022 has 64 divisors (see below), whose sum is σ = 27899320320. Its totient is φ = 4097520000.

The previous prime is 12423434011. The next prime is 12423434039. The reversal of 12423434022 is 22043432421.

12423434022 is a `hidden beast` number, since 1 + 24 + 234 + 3 + 402 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4581247 + ... + 4583957.

It is an arithmetic number, because the mean of its divisors is an integer number (435926880).

Almost surely, 2^12423434022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423434022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13949660160).

12423434022 is an abundant number, since it is smaller than the sum of its proper divisors (15475886298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12423434022 is a wasteful number, since it uses less digits than its factorization.

12423434022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12423434022 its reverse (22043432421), we get a palindrome (34466866443).

The spelling of 12423434022 in words is "twelve billion, four hundred twenty-three million, four hundred thirty-four thousand, twenty-two".