12112112321203 has 2 divisors, whose sum is σ = 12112112321204. Its totient is φ = 12112112321202.

The previous prime is 12112112321189. The next prime is 12112112321299. The reversal of 12112112321203 is 30212321121121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12112112321203 - 2⁹ = 12112112320691 is a prime.

It is not a weakly prime, because it can be changed into another prime (12112112322203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056056160601 + 6056056160602.

It is an arithmetic number, because the mean of its divisors is an integer number (6056056160602).

Almost surely, 2^{12112112321203} is an apocalyptic number.

12112112321203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112112321203 is an equidigital number, since it uses as much as digits as its factorization.

12112112321203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12112112321203 its reverse (30212321121121), we get a palindrome (42324433442324).

The spelling of 12112112321203 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, three hundred twenty-one thousand, two hundred three".