12400300000 has 144 divisors (see below), whose sum is σ = 33291400464. Its totient is φ = 4508800000.

The previous prime is 12400299997. The next prime is 12400300039. The reversal of 12400300000 is 300421.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 12400300000.

It is a congruent number.

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, 1094364 + ... + 1105636.

It is an arithmetic number, because the mean of its divisors is an integer number (231190281).

Almost surely, 2^12400300000 is an apocalyptic number.

12400300000 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 12400300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16645700232).

12400300000 is an abundant number, since it is smaller than the sum of its proper divisors (20891100464).

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

12400300000 is an equidigital number, since it uses as much as digits as its factorization.

12400300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319 (or 11291 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 12400300000 its reverse (300421), we get a palindrome (12400600421).

The spelling of 12400300000 in words is "twelve billion, four hundred million, three hundred thousand".