1000204522987 has 2 divisors, whose sum is σ = 1000204522988. Its totient is φ = 1000204522986.

The previous prime is 1000204522939. The next prime is 1000204523011. The reversal of 1000204522987 is 7892254020001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000204522987 - 2³¹ = 998057039339 is a prime.

It is a super-2 number, since 2×1000204522987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000204822987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500102261493 + 500102261494.

It is an arithmetic number, because the mean of its divisors is an integer number (500102261494).

Almost surely, 2^{1000204522987} is an apocalyptic number.

1000204522987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000204522987 is an equidigital number, since it uses as much as digits as its factorization.

1000204522987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

Adding to 1000204522987 its reverse (7892254020001), we get a palindrome (8892458542988).

The spelling of 1000204522987 in words is "one trillion, two hundred four million, five hundred twenty-two thousand, nine hundred eighty-seven".