12043423123 has 8 divisors (see below), whose sum is σ = 12068763408. Its totient is φ = 12018106464.

The previous prime is 12043423099. The next prime is 12043423177. The reversal of 12043423123 is 32132434021.

12043423123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12043423123 - 2³³ = 3453488531 is a prime.

It is a super-2 number, since 2×12043423123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12043423193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304040 + ... + 1313242.

It is an arithmetic number, because the mean of its divisors is an integer number (1508595426).

Almost surely, 2^12043423123 is an apocalyptic number.

12043423123 is a deficient number, since it is larger than the sum of its proper divisors (25340285).

12043423123 is an equidigital number, since it uses as much as digits as its factorization.

12043423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11813.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12043423123 its reverse (32132434021), we get a palindrome (44175857144).

The spelling of 12043423123 in words is "twelve billion, forty-three million, four hundred twenty-three thousand, one hundred twenty-three".