231331103 has 4 divisors (see below), whose sum is σ = 231488160. Its totient is φ = 231174048.

The previous prime is 231331081. The next prime is 231331117. The reversal of 231331103 is 301133132.

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 231331103 - 2²⁴ = 214553887 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 (231331003) 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 3 ways as a sum of consecutive naturals, for example, 76298 + ... + 79271.

It is an arithmetic number, because the mean of its divisors is an integer number (57872040).

Almost surely, 2^231331103 is an apocalyptic number.

231331103 is a deficient number, since it is larger than the sum of its proper divisors (157057).

231331103 is a wasteful number, since it uses less digits than its factorization.

231331103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157056.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 231331103 is about 15209.5727421910. The cubic root of 231331103 is about 613.8722611962.

Adding to 231331103 its reverse (301133132), we get a palindrome (532464235).

The spelling of 231331103 in words is "two hundred thirty-one million, three hundred thirty-one thousand, one hundred three".