2111113 has 4 divisors (see below), whose sum is σ = 2183940. Its totient is φ = 2038288.

The previous prime is 2111107. The next prime is 2111129. The reversal of 2111113 is 3111112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 927369 = 1088^2 + 963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111113.

It is not an unprimeable number, because it can be changed into a prime (2111513) 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, 36370 + ... + 36427.

It is an arithmetic number, because the mean of its divisors is an integer number (545985).

2^2111113 is an apocalyptic number.

It is an amenable number.

2111113 is a deficient number, since it is larger than the sum of its proper divisors (72827).

2111113 is an equidigital number, since it uses as much as digits as its factorization.

2111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72826.

The product of its digits is 6, while the sum is 10.

The square root of 2111113 is about 1452.9669645247. The cubic root of 2111113 is about 128.2834093025.

Adding to 2111113 its reverse (3111112), we get a palindrome (5222225).

Subtracting 2111113 from its reverse (3111112), we obtain a palindrome (999999).

The spelling of 2111113 in words is "two million, one hundred eleven thousand, one hundred thirteen".