2120104112017 has 2 divisors, whose sum is σ = 2120104112018. Its totient is φ = 2120104112016.

The previous prime is 2120104111997. The next prime is 2120104112023. The reversal of 2120104112017 is 7102114010212.

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., 1849861129216 + 270242982801 = 1360096^2 + 519849^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120104112017 - 2¹¹ = 2120104109969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120104112317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060052056008 + 1060052056009.

It is an arithmetic number, because the mean of its divisors is an integer number (1060052056009).

Almost surely, 2^{2120104112017} is an apocalyptic number.

It is an amenable number.

2120104112017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120104112017 is an equidigital number, since it uses as much as digits as its factorization.

2120104112017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 2120104112017 its reverse (7102114010212), we get a palindrome (9222218122229).

The spelling of 2120104112017 in words is "two trillion, one hundred twenty billion, one hundred four million, one hundred twelve thousand, seventeen".