12043231113 has 4 divisors (see below), whose sum is σ = 16057641488. Its totient is φ = 8028820740.

The previous prime is 12043231097. The next prime is 12043231117. The reversal of 12043231113 is 31113234021.

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 12043231113 - 2⁴ = 12043231097 is a prime.

It is a super-2 number, since 2×12043231113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12043231113.

It is not an unprimeable number, because it can be changed into a prime (12043231117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2007205183 + ... + 2007205188.

It is an arithmetic number, because the mean of its divisors is an integer number (4014410372).

Almost surely, 2^12043231113 is an apocalyptic number.

It is an amenable number.

12043231113 is a deficient number, since it is larger than the sum of its proper divisors (4014410375).

12043231113 is an equidigital number, since it uses as much as digits as its factorization.

12043231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014410374.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12043231113 its reverse (31113234021), we get a palindrome (43156465134).

The spelling of 12043231113 in words is "twelve billion, forty-three million, two hundred thirty-one thousand, one hundred thirteen".