1000200019997 has 2 divisors, whose sum is σ = 1000200019998. Its totient is φ = 1000200019996.

The previous prime is 1000200019933. The next prime is 1000200020009. The reversal of 1000200019997 is 7999100020001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 850930606681 + 149269413316 = 922459^2 + 386354^2 .

It is an emirp because it is prime and its reverse (7999100020001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000200019997 - 2⁶ = 1000200019933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000200019997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000200019397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500100009998 + 500100009999.

It is an arithmetic number, because the mean of its divisors is an integer number (500100009999).

Almost surely, 2^{1000200019997} is an apocalyptic number.

It is an amenable number.

1000200019997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000200019997 is an equidigital number, since it uses as much as digits as its factorization.

1000200019997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 38.

Adding to 1000200019997 its reverse (7999100020001), we get a palindrome (8999300039998).

The spelling of 1000200019997 in words is "one trillion, two hundred million, nineteen thousand, nine hundred ninety-seven".