12423212430 has 64 divisors (see below), whose sum is σ = 30114298368. Its totient is φ = 3279830400.

The previous prime is 12423212419. The next prime is 12423212447. The reversal of 12423212430 is 3421232421.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12423212430.

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, 1386244 + ... + 1395176.

It is an arithmetic number, because the mean of its divisors is an integer number (470535912).

Almost surely, 2^12423212430 is an apocalyptic number.

12423212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12423212430 is an abundant number, since it is smaller than the sum of its proper divisors (17691085938).

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

12423212430 is a wasteful number, since it uses less digits than its factorization.

12423212430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12423212430 its reverse (3421232421), we get a palindrome (15844444851).

The spelling of 12423212430 in words is "twelve billion, four hundred twenty-three million, two hundred twelve thousand, four hundred thirty".