101115871 has 2 divisors, whose sum is σ = 101115872. Its totient is φ = 101115870.

The previous prime is 101115841. The next prime is 101115899. The reversal of 101115871 is 178511101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101115871 - 2⁷ = 101115743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101115841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50557935 + 50557936.

It is an arithmetic number, because the mean of its divisors is an integer number (50557936).

Almost surely, 2^101115871 is an apocalyptic number.

101115871 is a deficient number, since it is larger than the sum of its proper divisors (1).

101115871 is an equidigital number, since it uses as much as digits as its factorization.

101115871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 25.

The square root of 101115871 is about 10055.6387663838. The cubic root of 101115871 is about 465.8789726040.

Adding to 101115871 its reverse (178511101), we get a palindrome (279626972).

The spelling of 101115871 in words is "one hundred one million, one hundred fifteen thousand, eight hundred seventy-one".