201000010201997 has 2 divisors, whose sum is σ = 201000010201998. Its totient is φ = 201000010201996.

The previous prime is 201000010201967. The next prime is 201000010202051. The reversal of 201000010201997 is 799102010000102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198850074219241 + 2149935982756 = 14101421^2 + 1466266^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000010201997 - 2²⁰ = 201000009153421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201000010201967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500005100998 + 100500005100999.

It is an arithmetic number, because the mean of its divisors is an integer number (100500005100999).

Almost surely, 2^{201000010201997} is an apocalyptic number.

It is an amenable number.

201000010201997 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000010201997 is an equidigital number, since it uses as much as digits as its factorization.

201000010201997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 201000010201997 in words is "two hundred one trillion, ten million, two hundred one thousand, nine hundred ninety-seven".