231502323 has 16 divisors (see below), whose sum is σ = 332729600. Its totient is φ = 142327584.

The previous prime is 231502301. The next prime is 231502363. The reversal of 231502323 is 323205132.

It is not a de Polignac number, because 231502323 - 2⁹ = 231501811 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 231502323.

It is not an unprimeable number, because it can be changed into a prime (231502363) 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, 52440 + ... + 56682.

It is an arithmetic number, because the mean of its divisors is an integer number (20795600).

Almost surely, 2^231502323 is an apocalyptic number.

231502323 is a deficient number, since it is larger than the sum of its proper divisors (101227277).

231502323 is a wasteful number, since it uses less digits than its factorization.

231502323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 231502323 is about 15215.2003930280. The cubic root of 231502323 is about 614.0236766150.

Adding to 231502323 its reverse (323205132), we get a palindrome (554707455).

The spelling of 231502323 in words is "two hundred thirty-one million, five hundred two thousand, three hundred twenty-three".