12311140217 has 2 divisors, whose sum is σ = 12311140218. Its totient is φ = 12311140216.

The previous prime is 12311140213. The next prime is 12311140249. The reversal of 12311140217 is 71204111321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10130623801 + 2180516416 = 100651^2 + 46696^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311140217 - 2² = 12311140213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311140192 and 12311140201.

It is not a weakly prime, because it can be changed into another prime (12311140213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155570108 + 6155570109.

It is an arithmetic number, because the mean of its divisors is an integer number (6155570109).

Almost surely, 2^12311140217 is an apocalyptic number.

It is an amenable number.

12311140217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311140217 is an equidigital number, since it uses as much as digits as its factorization.

12311140217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 12311140217 its reverse (71204111321), we get a palindrome (83515251538).

The spelling of 12311140217 in words is "twelve billion, three hundred eleven million, one hundred forty thousand, two hundred seventeen".