20570203307089 has 2 divisors, whose sum is σ = 20570203307090. Its totient is φ = 20570203307088.

The previous prime is 20570203307051. The next prime is 20570203307123. The reversal of 20570203307089 is 98070330207502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16956276840000 + 3613926467089 = 4117800^2 + 1901033^2 .

It is a cyclic number.

It is not a de Polignac number, because 20570203307089 - 2²⁹ = 20569666436177 is a prime.

It is not a weakly prime, because it can be changed into another prime (20570203307009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10285101653544 + 10285101653545.

It is an arithmetic number, because the mean of its divisors is an integer number (10285101653545).

Almost surely, 2^{20570203307089} is an apocalyptic number.

It is an amenable number.

20570203307089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20570203307089 is an equidigital number, since it uses as much as digits as its factorization.

20570203307089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 20570203307089 in words is "twenty trillion, five hundred seventy billion, two hundred three million, three hundred seven thousand, eighty-nine".