10201020197 has 2 divisors, whose sum is σ = 10201020198. Its totient is φ = 10201020196.

The previous prime is 10201020157. The next prime is 10201020223. The reversal of 10201020197 is 79102010201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6497810881 + 3703209316 = 80609^2 + 60854^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201020197 - 2⁶ = 10201020133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10201020157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100510098 + 5100510099.

It is an arithmetic number, because the mean of its divisors is an integer number (5100510099).

Almost surely, 2^10201020197 is an apocalyptic number.

It is an amenable number.

10201020197 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201020197 is an equidigital number, since it uses as much as digits as its factorization.

10201020197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 10201020197 its reverse (79102010201), we get a palindrome (89303030398).

The spelling of 10201020197 in words is "ten billion, two hundred one million, twenty thousand, one hundred ninety-seven".