231304323 has 4 divisors (see below), whose sum is σ = 308405768. Its totient is φ = 154202880.

The previous prime is 231304321. The next prime is 231304351. The reversal of 231304323 is 323403132.

231304323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231304323 - 2¹ = 231304321 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 231304323.

It is not an unprimeable number, because it can be changed into a prime (231304321) 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, 38550718 + ... + 38550723.

It is an arithmetic number, because the mean of its divisors is an integer number (77101442).

Almost surely, 2^231304323 is an apocalyptic number.

231304323 is a deficient number, since it is larger than the sum of its proper divisors (77101445).

231304323 is an equidigital number, since it uses as much as digits as its factorization.

231304323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77101444.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 231304323 is about 15208.6923501003. The cubic root of 231304323 is about 613.8485720146.

Adding to 231304323 its reverse (323403132), we get a palindrome (554707455).

The spelling of 231304323 in words is "two hundred thirty-one million, three hundred four thousand, three hundred twenty-three".