12423143200 has 144 divisors (see below), whose sum is σ = 32884223400. Its totient is φ = 4555653120.

The previous prime is 12423143197. The next prime is 12423143233. The reversal of 12423143200 is 234132421.

It can be written as a sum of positive squares in 12 ways, for example, as 188128656 + 12235014544 = 13716^2 + 110612^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545592 + ... + 1553608.

Almost surely, 2^12423143200 is an apocalyptic number.

12423143200 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 12423143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16442111700).

12423143200 is an abundant number, since it is smaller than the sum of its proper divisors (20461080200).

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

12423143200 is a wasteful number, since it uses less digits than its factorization.

12423143200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199 (or 8186 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12423143200 its reverse (234132421), we get a palindrome (12657275621).

The spelling of 12423143200 in words is "twelve billion, four hundred twenty-three million, one hundred forty-three thousand, two hundred".