11123330111 has 4 divisors (see below), whose sum is σ = 11185471800. Its totient is φ = 11061188424.

The previous prime is 11123330083. The next prime is 11123330117. The reversal of 11123330111 is 11103332111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11103332111 = 17 ⋅653137183.

It is a cyclic number.

It is not a de Polignac number, because 11123330111 - 2⁶ = 11123330047 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 11123330111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123330117) 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, 31070576 + ... + 31070933.

It is an arithmetic number, because the mean of its divisors is an integer number (2796367950).

Almost surely, 2^11123330111 is an apocalyptic number.

11123330111 is a deficient number, since it is larger than the sum of its proper divisors (62141689).

11123330111 is an equidigital number, since it uses as much as digits as its factorization.

11123330111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62141688.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11123330111 its reverse (11103332111), we get a palindrome (22226662222).

The spelling of 11123330111 in words is "eleven billion, one hundred twenty-three million, three hundred thirty thousand, one hundred eleven".