2113911 has 16 divisors (see below), whose sum is σ = 3187200. Its totient is φ = 1384344.

The previous prime is 2113901. The next prime is 2113913. The reversal of 2113911 is 1193112.

It is not a de Polignac number, because 2113911 - 2⁵ = 2113879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (199200).

2^2113911 is an apocalyptic number.

2113911 is a deficient number, since it is larger than the sum of its proper divisors (1073289).

2113911 is a wasteful number, since it uses less digits than its factorization.

2113911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1389 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

The square root of 2113911 is about 1453.9295031053. The cubic root of 2113911 is about 128.3400584920.

The spelling of 2113911 in words is "two million, one hundred thirteen thousand, nine hundred eleven".