1211340033317 has 2 divisors, whose sum is σ = 1211340033318. Its totient is φ = 1211340033316.

The previous prime is 1211340033203. The next prime is 1211340033329. The reversal of 1211340033317 is 7133300431121.

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., 1210706303041 + 633730276 = 1100321^2 + 25174^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211340033317 - 2²⁰ = 1211338984741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211340033317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211340033367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605670016658 + 605670016659.

It is an arithmetic number, because the mean of its divisors is an integer number (605670016659).

Almost surely, 2^{1211340033317} is an apocalyptic number.

It is an amenable number.

1211340033317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211340033317 is an equidigital number, since it uses as much as digits as its factorization.

1211340033317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 1211340033317 its reverse (7133300431121), we get a palindrome (8344640464438).

The spelling of 1211340033317 in words is "one trillion, two hundred eleven billion, three hundred forty million, thirty-three thousand, three hundred seventeen".