12043244413 has 4 divisors (see below), whose sum is σ = 12061859040. Its totient is φ = 12024629788.

The previous prime is 12043244407. The next prime is 12043244419. The reversal of 12043244413 is 31444234021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31444234021 = 59 ⋅532953119.

It is an interprime number because it is at equal distance from previous prime (12043244407) and next prime (12043244419).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12043244413 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 (12043244419) 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, 9306343 + ... + 9307636.

It is an arithmetic number, because the mean of its divisors is an integer number (3015464760).

Almost surely, 2^12043244413 is an apocalyptic number.

It is an amenable number.

12043244413 is a deficient number, since it is larger than the sum of its proper divisors (18614627).

12043244413 is an equidigital number, since it uses as much as digits as its factorization.

12043244413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18614626.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12043244413 its reverse (31444234021), we get a palindrome (43487478434).

The spelling of 12043244413 in words is "twelve billion, forty-three million, two hundred forty-four thousand, four hundred thirteen".