102000000009871 has 2 divisors, whose sum is σ = 102000000009872. Its totient is φ = 102000000009870.

The previous prime is 102000000009863. The next prime is 102000000010009. The reversal of 102000000009871 is 178900000000201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102000000009871 - 2³ = 102000000009863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102000000003871) 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, 51000000004935 + 51000000004936.

It is an arithmetic number, because the mean of its divisors is an integer number (51000000004936).

Almost surely, 2^{102000000009871} is an apocalyptic number.

102000000009871 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000000009871 is an equidigital number, since it uses as much as digits as its factorization.

102000000009871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 102000000009871 in words is "one hundred two trillion, nine thousand, eight hundred seventy-one".