101911099 has 2 divisors, whose sum is σ = 101911100. Its totient is φ = 101911098.

The previous prime is 101911097. The next prime is 101911109. The reversal of 101911099 is 990119101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101911099 - 2¹ = 101911097 is a prime.

Together with 101911097, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 101911099.

It is not a weakly prime, because it can be changed into another prime (101911093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50955549 + 50955550.

It is an arithmetic number, because the mean of its divisors is an integer number (50955550).

Almost surely, 2^101911099 is an apocalyptic number.

101911099 is a deficient number, since it is larger than the sum of its proper divisors (1).

101911099 is an equidigital number, since it uses as much as digits as its factorization.

101911099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 31.

The square root of 101911099 is about 10095.1027235982. The cubic root of 101911099 is about 467.0970900146.

The spelling of 101911099 in words is "one hundred one million, nine hundred eleven thousand, ninety-nine".