2108311 has 4 divisors (see below), whose sum is σ = 2111400. Its totient is φ = 2105224.

The previous prime is 2108299. The next prime is 2108317. The reversal of 2108311 is 1138012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2108311 - 2²¹ = 11159 is a prime.

It is a Duffinian number.

2108311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108317) 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, 16 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (527850).

2^2108311 is an apocalyptic number.

2108311 is a deficient number, since it is larger than the sum of its proper divisors (3089).

2108311 is a wasteful number, since it uses less digits than its factorization.

2108311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2108311 is about 1452.0024104663. The cubic root of 2108311 is about 128.2266289441.

Subtracting from 2108311 its reverse (1138012), we obtain a cube (970299 = 99³).

The spelling of 2108311 in words is "two million, one hundred eight thousand, three hundred eleven".