17100020007121 has 2 divisors, whose sum is σ = 17100020007122. Its totient is φ = 17100020007120.

The previous prime is 17100020007113. The next prime is 17100020007167. The reversal of 17100020007121 is 12170002000171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15209571003025 + 1890449004096 = 3899945^2 + 1374936^2 .

It is a cyclic number.

It is not a de Polignac number, because 17100020007121 - 2³ = 17100020007113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17100020007092 and 17100020007101.

It is not a weakly prime, because it can be changed into another prime (17100020017121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8550010003560 + 8550010003561.

It is an arithmetic number, because the mean of its divisors is an integer number (8550010003561).

Almost surely, 2^{17100020007121} is an apocalyptic number.

It is an amenable number.

17100020007121 is a deficient number, since it is larger than the sum of its proper divisors (1).

17100020007121 is an equidigital number, since it uses as much as digits as its factorization.

17100020007121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 22.

Adding to 17100020007121 its reverse (12170002000171), we get a palindrome (29270022007292).

The spelling of 17100020007121 in words is "seventeen trillion, one hundred billion, twenty million, seven thousand, one hundred twenty-one".