231111323 has 8 divisors (see below), whose sum is σ = 235710000. Its totient is φ = 226521568.

The previous prime is 231111281. The next prime is 231111347. The reversal of 231111323 is 323111132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231111323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231111623) 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 7 ways as a sum of consecutive naturals, for example, 77993 + ... + 80901.

It is an arithmetic number, because the mean of its divisors is an integer number (29463750).

Almost surely, 2^231111323 is an apocalyptic number.

231111323 is a deficient number, since it is larger than the sum of its proper divisors (4598677).

231111323 is a wasteful number, since it uses less digits than its factorization.

231111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461.

The product of its digits is 108, while the sum is 17.

The square root of 231111323 is about 15202.3459702771. The cubic root of 231111323 is about 613.6777930464.

Adding to 231111323 its reverse (323111132), we get a palindrome (554222455).

It can be divided in two parts, 23111132 and 3, that multiplied together give a palindrome (69333396).

The spelling of 231111323 in words is "two hundred thirty-one million, one hundred eleven thousand, three hundred twenty-three".