23103 has 12 divisors (see below), whose sum is σ = 35568.
Its totient is φ = 14400.
The previous prime is 23099. The next prime is 23117. The reversal of 23103 is 30132.
It is a happy number.
It is a Cunningham number, because it is equal to 1522-1.
It is not a de Polignac number, because 23103 - 22 = 23099 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23143) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78 + ... + 228.
It is an arithmetic number, because the mean of its divisors is an integer number (2964).
223103 is an apocalyptic number.
23103 is a deficient number, since it is larger than the sum of its proper divisors (12465).
23103 is a wasteful number, since it uses less digits than its factorization.
23103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 174 (or 171 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 9.
The square root of 23103 is about 151.9967104907.
The cubic root of 23103 is about 28.4810585128.
Adding to 23103 its reverse (30132), we get a palindrome (53235).
The spelling of 23103 in words is "twenty-three thousand, one hundred three", and thus it is an iban number.