113911 has 4 divisors (see below), whose sum is σ = 130192. Its totient is φ = 97632.

The previous prime is 113909. The next prime is 113921. The reversal of 113911 is 119311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113911 - 2¹ = 113909 is a prime.

It is a Duffinian number.

113911 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113921) 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 in 3 ways as a sum of consecutive naturals, for example, 8130 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (32548).

2¹¹³⁹¹¹ is an apocalyptic number.

113911 is a deficient number, since it is larger than the sum of its proper divisors (16281).

113911 is an equidigital number, since it uses as much as digits as its factorization.

113911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280.

The product of its digits is 27, while the sum is 16.

The square root of 113911 is about 337.5070369637. The cubic root of 113911 is about 48.4754543313.

It can be divided in two parts, 113 and 911, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 113911 in words is "one hundred thirteen thousand, nine hundred eleven".