12112979 has 2 divisors, whose sum is σ = 12112980. Its totient is φ = 12112978.

The previous prime is 12112967. The next prime is 12113047. The reversal of 12112979 is 97921121.

12112979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (97921121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12112679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056489 + 6056490.

It is an arithmetic number, because the mean of its divisors is an integer number (6056490).

Almost surely, 2^12112979 is an apocalyptic number.

12112979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112979 is an equidigital number, since it uses as much as digits as its factorization.

12112979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 32.

The square root of 12112979 is about 3480.3705262515. The cubic root of 12112979 is about 229.6590979952.

The spelling of 12112979 in words is "twelve million, one hundred twelve thousand, nine hundred seventy-nine".