231203323 has 12 divisors (see below), whose sum is σ = 250895928. Its totient is φ = 212958720.

The previous prime is 231203299. The next prime is 231203327. The reversal of 231203323 is 323302132.

It is a happy number.

It is not a de Polignac number, because 231203323 - 2¹³ = 231195131 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 231203323.

It is not an unprimeable number, because it can be changed into a prime (231203327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96328 + ... + 98698.

It is an arithmetic number, because the mean of its divisors is an integer number (20907994).

Almost surely, 2^231203323 is an apocalyptic number.

231203323 is a deficient number, since it is larger than the sum of its proper divisors (19692605).

231203323 is a wasteful number, since it uses less digits than its factorization.

231203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2961 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 231203323 is about 15205.3715179867. The cubic root of 231203323 is about 613.7592124915.

Adding to 231203323 its reverse (323302132), we get a palindrome (554505455).

The spelling of 231203323 in words is "two hundred thirty-one million, two hundred three thousand, three hundred twenty-three".