231103 has 4 divisors (see below), whose sum is σ = 235080. Its totient is φ = 227128.

The previous prime is 231079. The next prime is 231107. The reversal of 231103 is 301132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231103 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 231103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231107) 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, 1900 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (58770).

2²³¹¹⁰³ is an apocalyptic number.

231103 is a deficient number, since it is larger than the sum of its proper divisors (3977).

231103 is an equidigital number, since it uses as much as digits as its factorization.

231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 231103 is about 480.7317339224. The cubic root of 231103 is about 61.3670426176.

Adding to 231103 its reverse (301132), we get a palindrome (532235).

The spelling of 231103 in words is "two hundred thirty-one thousand, one hundred three".