12112012043 has 2 divisors, whose sum is σ = 12112012044. Its totient is φ = 12112012042.

The previous prime is 12112012019. The next prime is 12112012051. The reversal of 12112012043 is 34021021121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112012043 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12112012063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056006021 + 6056006022.

It is an arithmetic number, because the mean of its divisors is an integer number (6056006022).

Almost surely, 2^12112012043 is an apocalyptic number.

12112012043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112012043 is an equidigital number, since it uses as much as digits as its factorization.

12112012043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12112012043 its reverse (34021021121), we get a palindrome (46133033164).

The spelling of 12112012043 in words is "twelve billion, one hundred twelve million, twelve thousand, forty-three".