12113233131217 has 2 divisors, whose sum is σ = 12113233131218. Its totient is φ = 12113233131216.

The previous prime is 12113233131193. The next prime is 12113233131221. The reversal of 12113233131217 is 71213133231121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8386792832016 + 3726440299201 = 2895996^2 + 1930399^2 .

It is a cyclic number.

It is not a de Polignac number, because 12113233131217 - 2¹¹ = 12113233129169 is a prime.

It is not a weakly prime, because it can be changed into another prime (12113233131277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056616565608 + 6056616565609.

It is an arithmetic number, because the mean of its divisors is an integer number (6056616565609).

Almost surely, 2^{12113233131217} is an apocalyptic number.

It is an amenable number.

12113233131217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113233131217 is an equidigital number, since it uses as much as digits as its factorization.

12113233131217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

Adding to 12113233131217 its reverse (71213133231121), we get a palindrome (83326366362338).

The spelling of 12113233131217 in words is "twelve trillion, one hundred thirteen billion, two hundred thirty-three million, one hundred thirty-one thousand, two hundred seventeen".