23111103 has 4 divisors (see below), whose sum is σ = 30814808. Its totient is φ = 15407400.

The previous prime is 23111093. The next prime is 23111107. The reversal of 23111103 is 30111132.

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

It is not a de Polignac number, because 23111103 - 2⁵ = 23111071 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 (23111107) 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, 3851848 + ... + 3851853.

It is an arithmetic number, because the mean of its divisors is an integer number (7703702).

Almost surely, 2^23111103 is an apocalyptic number.

23111103 is a deficient number, since it is larger than the sum of its proper divisors (7703705).

23111103 is an equidigital number, since it uses as much as digits as its factorization.

23111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703704.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 23111103 is about 4807.4008570120. The cubic root of 23111103 is about 284.8438787901.

Adding to 23111103 its reverse (30111132), we get a palindrome (53222235).

The spelling of 23111103 in words is "twenty-three million, one hundred eleven thousand, one hundred three".