12132312121121 has 2 divisors, whose sum is σ = 12132312121122. Its totient is φ = 12132312121120.

The previous prime is 12132312121117. The next prime is 12132312121151. The reversal of 12132312121121 is 12112121323121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6592384894096 + 5539927227025 = 2567564^2 + 2353705^2 .

It is a cyclic number.

It is not a de Polignac number, because 12132312121121 - 2² = 12132312121117 is a prime.

It is not a weakly prime, because it can be changed into another prime (12132312121151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066156060560 + 6066156060561.

It is an arithmetic number, because the mean of its divisors is an integer number (6066156060561).

Almost surely, 2^{12132312121121} is an apocalyptic number.

It is an amenable number.

12132312121121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132312121121 is an equidigital number, since it uses as much as digits as its factorization.

12132312121121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 23.

Adding to 12132312121121 its reverse (12112121323121), we get a palindrome (24244433444242).

The spelling of 12132312121121 in words is "twelve trillion, one hundred thirty-two billion, three hundred twelve million, one hundred twenty-one thousand, one hundred twenty-one".