100987543171 has 2 divisors, whose sum is σ = 100987543172. Its totient is φ = 100987543170.

The previous prime is 100987543127. The next prime is 100987543187. The reversal of 100987543171 is 171345789001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100987543171 - 2⁹ = 100987542659 is a prime.

It is not a weakly prime, because it can be changed into another prime (100987549171) 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, 50493771585 + 50493771586.

It is an arithmetic number, because the mean of its divisors is an integer number (50493771586).

Almost surely, 2^100987543171 is an apocalyptic number.

100987543171 is a deficient number, since it is larger than the sum of its proper divisors (1).

100987543171 is an equidigital number, since it uses as much as digits as its factorization.

100987543171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 100987543171 in words is "one hundred billion, nine hundred eighty-seven million, five hundred forty-three thousand, one hundred seventy-one".