231223103 has 16 divisors (see below), whose sum is σ = 258577920. Its totient is φ = 205474176.

The previous prime is 231223081. The next prime is 231223121. The reversal of 231223103 is 301322132.

It is a cyclic number.

It is not a de Polignac number, because 231223103 - 2⁶ = 231223039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231223133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111050 + ... + 113112.

It is an arithmetic number, because the mean of its divisors is an integer number (16161120).

Almost surely, 2^231223103 is an apocalyptic number.

231223103 is a deficient number, since it is larger than the sum of its proper divisors (27354817).

231223103 is a wasteful number, since it uses less digits than its factorization.

231223103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231223103 is about 15206.0219321162. The cubic root of 231223103 is about 613.7767148510.

Adding to 231223103 its reverse (301322132), we get a palindrome (532545235).

The spelling of 231223103 in words is "two hundred thirty-one million, two hundred twenty-three thousand, one hundred three".