12440421300 has 72 divisors (see below), whose sum is σ = 36006500992. Its totient is φ = 3316320000.

The previous prime is 12440421299. The next prime is 12440421307. The reversal of 12440421300 is 312404421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440421307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1255365 + ... + 1265235.

Almost surely, 2^12440421300 is an apocalyptic number.

12440421300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12440421300 is an abundant number, since it is smaller than the sum of its proper divisors (23566079692).

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

12440421300 is a wasteful number, since it uses less digits than its factorization.

12440421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089 (or 14082 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12440421300 its reverse (312404421), we get a palindrome (12752825721).

The spelling of 12440421300 in words is "twelve billion, four hundred forty million, four hundred twenty-one thousand, three hundred".