11103232111 has 4 divisors (see below), whose sum is σ = 11111887512. Its totient is φ = 11094576712.

The previous prime is 11103232109. The next prime is 11103232163. The reversal of 11103232111 is 11123230111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11103232111 - 2¹ = 11103232109 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 (11103232171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325776 + ... + 4328341.

It is an arithmetic number, because the mean of its divisors is an integer number (2777971878).

Almost surely, 2^11103232111 is an apocalyptic number.

11103232111 is a deficient number, since it is larger than the sum of its proper divisors (8655401).

11103232111 is an equidigital number, since it uses as much as digits as its factorization.

11103232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655400.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11103232111 its reverse (11123230111), we get a palindrome (22226462222).

The spelling of 11103232111 in words is "eleven billion, one hundred three million, two hundred thirty-two thousand, one hundred eleven".