17021270105123 has 2 divisors, whose sum is σ = 17021270105124. Its totient is φ = 17021270105122.

The previous prime is 17021270105087. The next prime is 17021270105153. The reversal of 17021270105123 is 32150107212071.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17021270105123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17021270105123.

It is not a weakly prime, because it can be changed into another prime (17021270105153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8510635052561 + 8510635052562.

It is an arithmetic number, because the mean of its divisors is an integer number (8510635052562).

Almost surely, 2^{17021270105123} is an apocalyptic number.

17021270105123 is a deficient number, since it is larger than the sum of its proper divisors (1).

17021270105123 is an equidigital number, since it uses as much as digits as its factorization.

17021270105123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 17021270105123 its reverse (32150107212071), we get a palindrome (49171377317194).

The spelling of 17021270105123 in words is "seventeen trillion, twenty-one billion, two hundred seventy million, one hundred five thousand, one hundred twenty-three".