12042421344013 has 4 divisors (see below), whose sum is σ = 12042560221120. Its totient is φ = 12042282466908.

The previous prime is 12042421343971. The next prime is 12042421344017. The reversal of 12042421344013 is 31044312424021.

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 12042421344013 - 2²¹ = 12042419246861 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 (12042421344017) 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, 69308403 + ... + 69481936.

It is an arithmetic number, because the mean of its divisors is an integer number (3010640055280).

Almost surely, 2^{12042421344013} is an apocalyptic number.

It is an amenable number.

12042421344013 is a deficient number, since it is larger than the sum of its proper divisors (138877107).

12042421344013 is an equidigital number, since it uses as much as digits as its factorization.

12042421344013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138877106.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12042421344013 its reverse (31044312424021), we get a palindrome (43086733768034).

The spelling of 12042421344013 in words is "twelve trillion, forty-two billion, four hundred twenty-one million, three hundred forty-four thousand, thirteen".