12112754909 has 2 divisors, whose sum is σ = 12112754910. Its totient is φ = 12112754908.

The previous prime is 12112754903. The next prime is 12112754957. The reversal of 12112754909 is 90945721121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9967027225 + 2145727684 = 99835^2 + 46322^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112754909 - 2⁸ = 12112754653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112754903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056377454 + 6056377455.

It is an arithmetic number, because the mean of its divisors is an integer number (6056377455).

Almost surely, 2^12112754909 is an apocalyptic number.

It is an amenable number.

12112754909 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112754909 is an equidigital number, since it uses as much as digits as its factorization.

12112754909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

The spelling of 12112754909 in words is "twelve billion, one hundred twelve million, seven hundred fifty-four thousand, nine hundred nine".