210001198087 has 2 divisors, whose sum is σ = 210001198088. Its totient is φ = 210001198086.

The previous prime is 210001198019. The next prime is 210001198117. The reversal of 210001198087 is 780891100012.

210001198087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210001198087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210001198007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000599043 + 105000599044.

It is an arithmetic number, because the mean of its divisors is an integer number (105000599044).

Almost surely, 2^210001198087 is an apocalyptic number.

210001198087 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001198087 is an equidigital number, since it uses as much as digits as its factorization.

210001198087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 37.

Adding to 210001198087 its reverse (780891100012), we get a palindrome (990892298099).

The spelling of 210001198087 in words is "two hundred ten billion, one million, one hundred ninety-eight thousand, eighty-seven".