12043440130013 has 4 divisors (see below), whose sum is σ = 12043474006368. Its totient is φ = 12043406253660.

The previous prime is 12043440129983. The next prime is 12043440130027. The reversal of 12043440130013 is 31003104434021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12043440130013 - 2⁸ = 12043440129757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043440130093) 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, 16399193 + ... + 17117838.

It is an arithmetic number, because the mean of its divisors is an integer number (3010868501592).

Almost surely, 2^{12043440130013} is an apocalyptic number.

It is an amenable number.

12043440130013 is a deficient number, since it is larger than the sum of its proper divisors (33876355).

12043440130013 is an equidigital number, since it uses as much as digits as its factorization.

12043440130013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33876354.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12043440130013 its reverse (31003104434021), we get a palindrome (43046544564034).

The spelling of 12043440130013 in words is "twelve trillion, forty-three billion, four hundred forty million, one hundred thirty thousand, thirteen".