12120211031017 has 2 divisors, whose sum is σ = 12120211031018. Its totient is φ = 12120211031016.

The previous prime is 12120211030957. The next prime is 12120211031063. The reversal of 12120211031017 is 71013011202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8807741870656 + 3312469160361 = 2967784^2 + 1820019^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120211031017 - 2¹⁵ = 12120210998249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12120211031317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060105515508 + 6060105515509.

It is an arithmetic number, because the mean of its divisors is an integer number (6060105515509).

Almost surely, 2^{12120211031017} is an apocalyptic number.

It is an amenable number.

12120211031017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120211031017 is an equidigital number, since it uses as much as digits as its factorization.

12120211031017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 12120211031017 its reverse (71013011202121), we get a palindrome (83133222233138).

The spelling of 12120211031017 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, thirty-one thousand, seventeen".