111331323 has 24 divisors (see below), whose sum is σ = 169153920. Its totient is φ = 70462080.

The previous prime is 111331321. The next prime is 111331331. The reversal of 111331323 is 323133111.

It is a happy number.

111331323 is a `hidden beast` number, since 1 + 11 + 331 + 323 = 666.

It is not a de Polignac number, because 111331323 - 2¹ = 111331321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111331296 and 111331305.

It is not an unprimeable number, because it can be changed into a prime (111331321) 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 23 ways as a sum of consecutive naturals, for example, 11023 + ... + 18551.

It is an arithmetic number, because the mean of its divisors is an integer number (7048080).

Almost surely, 2^111331323 is an apocalyptic number.

111331323 is a deficient number, since it is larger than the sum of its proper divisors (57822597).

111331323 is a wasteful number, since it uses less digits than its factorization.

111331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7619 (or 7616 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 111331323 is about 10551.3659305324. The cubic root of 111331323 is about 481.0672476838.

Adding to 111331323 its reverse (323133111), we get a palindrome (434464434).

The spelling of 111331323 in words is "one hundred eleven million, three hundred thirty-one thousand, three hundred twenty-three".