102840911 has 2 divisors, whose sum is σ = 102840912. Its totient is φ = 102840910.

The previous prime is 102840887. The next prime is 102840979. The reversal of 102840911 is 119048201.

It is a weak prime.

It is an emirp because it is prime and its reverse (119048201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102840911 - 2¹⁸ = 102578767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102843911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51420455 + 51420456.

It is an arithmetic number, because the mean of its divisors is an integer number (51420456).

Almost surely, 2^102840911 is an apocalyptic number.

102840911 is a deficient number, since it is larger than the sum of its proper divisors (1).

102840911 is an equidigital number, since it uses as much as digits as its factorization.

102840911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 102840911 is about 10141.0507838192. The cubic root of 102840911 is about 468.5133514577.

The spelling of 102840911 in words is "one hundred two million, eight hundred forty thousand, nine hundred eleven".