100911 has 4 divisors (see below), whose sum is σ = 134552. Its totient is φ = 67272.

The previous prime is 100907. The next prime is 100913. The reversal of 100911 is 119001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119001 = 3 ⋅39667.

It is not a de Polignac number, because 100911 - 2² = 100907 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16816 + ... + 16821.

It is an arithmetic number, because the mean of its divisors is an integer number (33638).

2¹⁰⁰⁹¹¹ is an apocalyptic number.

100911 is a deficient number, since it is larger than the sum of its proper divisors (33641).

100911 is an equidigital number, since it uses as much as digits as its factorization.

100911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33640.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 100911 is about 317.6649177986. The cubic root of 100911 is about 46.5564120533.

Adding to 100911 its reverse (119001), we get a palindrome (219912).

The spelling of 100911 in words is "one hundred thousand, nine hundred eleven".