11120111 has 4 divisors (see below), whose sum is σ = 11705400. Its totient is φ = 10534824.

The previous prime is 11120107. The next prime is 11120129. The reversal of 11120111 is 11102111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11102111 = 2927 ⋅3793.

It is a cyclic number.

It is not a de Polignac number, because 11120111 - 2² = 11120107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120171) 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, 292616 + ... + 292653.

It is an arithmetic number, because the mean of its divisors is an integer number (2926350).

Almost surely, 2^11120111 is an apocalyptic number.

11120111 is a deficient number, since it is larger than the sum of its proper divisors (585289).

11120111 is an equidigital number, since it uses as much as digits as its factorization.

11120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585288.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 11120111 is about 3334.6830434091. The cubic root of 11120111 is about 223.2045486562.

Adding to 11120111 its reverse (11102111), we get a palindrome (22222222).

The spelling of 11120111 in words is "eleven million, one hundred twenty thousand, one hundred eleven".