111231343 has 4 divisors (see below), whose sum is σ = 113116680. Its totient is φ = 109346008.

The previous prime is 111231313. The next prime is 111231353. The reversal of 111231343 is 343132111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343132111 = 7 ⋅49018873.

It is a cyclic number.

It is not a de Polignac number, because 111231343 - 2²¹ = 109134191 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 111231343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942580 + ... + 942697.

It is an arithmetic number, because the mean of its divisors is an integer number (28279170).

Almost surely, 2^111231343 is an apocalyptic number.

111231343 is a deficient number, since it is larger than the sum of its proper divisors (1885337).

111231343 is an equidigital number, since it uses as much as digits as its factorization.

111231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885336.

The product of its digits is 216, while the sum is 19.

The square root of 111231343 is about 10546.6270911605. The cubic root of 111231343 is about 480.9231986506.

Adding to 111231343 its reverse (343132111), we get a palindrome (454363454).

The spelling of 111231343 in words is "one hundred eleven million, two hundred thirty-one thousand, three hundred forty-three".