12440343030413 has 4 divisors (see below), whose sum is σ = 12441321596028. Its totient is φ = 12439364464800.

The previous prime is 12440343030389. The next prime is 12440343030461. The reversal of 12440343030413 is 31403034304421.

12440343030413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12168529908964 + 271813121449 = 3488342^2 + 521357^2 .

It is a cyclic number.

It is not a de Polignac number, because 12440343030413 - 2¹⁶ = 12440342964877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12440343030413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440343030113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489263738 + ... + 489289163.

It is an arithmetic number, because the mean of its divisors is an integer number (3110330399007).

Almost surely, 2^{12440343030413} is an apocalyptic number.

It is an amenable number.

12440343030413 is a deficient number, since it is larger than the sum of its proper divisors (978565615).

12440343030413 is an equidigital number, since it uses as much as digits as its factorization.

12440343030413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978565614.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 12440343030413 its reverse (31403034304421), we get a palindrome (43843377334834).

The spelling of 12440343030413 in words is "twelve trillion, four hundred forty billion, three hundred forty-three million, thirty thousand, four hundred thirteen".