111340321 has 8 divisors (see below), whose sum is σ = 113992704. Its totient is φ = 108699840.

The previous prime is 111340319. The next prime is 111340343. The reversal of 111340321 is 123043111.

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

It is a cyclic number.

It is not a de Polignac number, because 111340321 - 2¹ = 111340319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111340295 and 111340304.

It is not an unprimeable number, because it can be changed into a prime (111340351) 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 7 ways as a sum of consecutive naturals, for example, 17616 + ... + 23086.

It is an arithmetic number, because the mean of its divisors is an integer number (14249088).

Almost surely, 2^111340321 is an apocalyptic number.

It is an amenable number.

111340321 is a deficient number, since it is larger than the sum of its proper divisors (2652383).

111340321 is an equidigital number, since it uses as much as digits as its factorization.

111340321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 111340321 is about 10551.7923122093. The cubic root of 111340321 is about 481.0802075779.

Adding to 111340321 its reverse (123043111), we get a palindrome (234383432).

The spelling of 111340321 in words is "one hundred eleven million, three hundred forty thousand, three hundred twenty-one".