12042404013 has 4 divisors (see below), whose sum is σ = 16056538688. Its totient is φ = 8028269340.

The previous prime is 12042403939. The next prime is 12042404021. The reversal of 12042404013 is 31040424021.

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 not a de Polignac number, because 12042404013 - 2⁹ = 12042403501 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 (12042404113) 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, 2007067333 + ... + 2007067338.

It is an arithmetic number, because the mean of its divisors is an integer number (4014134672).

Almost surely, 2^12042404013 is an apocalyptic number.

It is an amenable number.

12042404013 is a deficient number, since it is larger than the sum of its proper divisors (4014134675).

12042404013 is an equidigital number, since it uses as much as digits as its factorization.

12042404013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014134674.

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

Adding to 12042404013 its reverse (31040424021), we get a palindrome (43082828034).

The spelling of 12042404013 in words is "twelve billion, forty-two million, four hundred four thousand, thirteen".