12040103424 has 80 divisors (see below), whose sum is σ = 32387427072. Its totient is φ = 3974350848.

The previous prime is 12040103399. The next prime is 12040103431. The reversal of 12040103424 is 42430104021.

It is a self number, because there is not a number n which added to its sum of digits gives 12040103424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120157 + ... + 196259.

Almost surely, 2^12040103424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12040103424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16193713536).

12040103424 is an abundant number, since it is smaller than the sum of its proper divisors (20347323648).

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

12040103424 is an equidigital number, since it uses as much as digits as its factorization.

12040103424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76227 (or 76211 counting only the distinct ones).

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

Adding to 12040103424 its reverse (42430104021), we get a palindrome (54470207445).

The spelling of 12040103424 in words is "twelve billion, forty million, one hundred three thousand, four hundred twenty-four".