11113211 has 4 divisors (see below), whose sum is σ = 11211672. Its totient is φ = 11014752.

The previous prime is 11113183. The next prime is 11113213. The reversal of 11113211 is 11231111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11113211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113192 and 11113201.

It is not an unprimeable number, because it can be changed into a prime (11113213) 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, 49061 + ... + 49286.

It is an arithmetic number, because the mean of its divisors is an integer number (2802918).

Almost surely, 2^11113211 is an apocalyptic number.

11113211 is a deficient number, since it is larger than the sum of its proper divisors (98461).

11113211 is an equidigital number, since it uses as much as digits as its factorization.

11113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98460.

The product of its digits is 6, while the sum is 11.

The square root of 11113211 is about 3333.6483017859. The cubic root of 11113211 is about 223.1583731567.

Adding to 11113211 its reverse (11231111), we get a palindrome (22344322).

The spelling of 11113211 in words is "eleven million, one hundred thirteen thousand, two hundred eleven".