12423420200 has 144 divisors (see below), whose sum is σ = 30137976180. Its totient is φ = 4762347520.

The previous prime is 12423420193. The next prime is 12423420211. The reversal of 12423420200 is 202432421.

12423420200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 18 ways, for example, as 3391198756 + 9032221444 = 58234^2 + 95038^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39190442 + ... + 39190758.

Almost surely, 2^12423420200 is an apocalyptic number.

12423420200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423420200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15068988090).

12423420200 is an abundant number, since it is smaller than the sum of its proper divisors (17714555980).

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

12423420200 is a wasteful number, since it uses less digits than its factorization.

12423420200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12423420200 its reverse (202432421), we get a palindrome (12625852621).

The spelling of 12423420200 in words is "twelve billion, four hundred twenty-three million, four hundred twenty thousand, two hundred".