2125126065017 has 2 divisors, whose sum is σ = 2125126065018. Its totient is φ = 2125126065016.

The previous prime is 2125126064989. The next prime is 2125126065079. The reversal of 2125126065017 is 7105606215212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2117909732416 + 7216332601 = 1455304^2 + 84949^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125126065017 - 2⁶ = 2125126064953 is a prime.

It is a super-2 number, since 2×2125126065017² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2125126065817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062563032508 + 1062563032509.

It is an arithmetic number, because the mean of its divisors is an integer number (1062563032509).

Almost surely, 2^{2125126065017} is an apocalyptic number.

It is an amenable number.

2125126065017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125126065017 is an equidigital number, since it uses as much as digits as its factorization.

2125126065017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 2125126065017 in words is "two trillion, one hundred twenty-five billion, one hundred twenty-six million, sixty-five thousand, seventeen".