102911 has 2 divisors, whose sum is σ = 102912. Its totient is φ = 102910.

The previous prime is 102881. The next prime is 102913. The reversal of 102911 is 119201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102911 is a prime.

It is a Sophie Germain prime.

Together with 102913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51455 + 51456.

It is an arithmetic number, because the mean of its divisors is an integer number (51456).

2¹⁰²⁹¹¹ is an apocalyptic number.

102911 is a deficient number, since it is larger than the sum of its proper divisors (1).

102911 is an equidigital number, since it uses as much as digits as its factorization.

102911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 102911 is about 320.7974438801. The cubic root of 102911 is about 46.8619762337.

Subtracting 102911 from its reverse (119201), we obtain a triangular number (16290 = T₁₈₀).

The spelling of 102911 in words is "one hundred two thousand, nine hundred eleven".