111334321 has 6 divisors (see below), whose sum is σ = 129511410. Its totient is φ = 95429376.

The previous prime is 111334303. The next prime is 111334373. The reversal of 111334321 is 123433111.

It can be written as a sum of positive squares in only one way, i.e., 106316721 + 5017600 = 10311^2 + 2240^2 .

It is a de Polignac number, because none of the positive numbers 2^k-111334321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111334021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1136016 + ... + 1136113.

It is an arithmetic number, because the mean of its divisors is an integer number (21585235).

Almost surely, 2^111334321 is an apocalyptic number.

It is an amenable number.

111334321 is a deficient number, since it is larger than the sum of its proper divisors (18177089).

111334321 is an equidigital number, since it uses as much as digits as its factorization.

111334321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272143 (or 2272136 counting only the distinct ones).

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

The square root of 111334321 is about 10551.5079964904. The cubic root of 111334321 is about 481.0715658056.

Adding to 111334321 its reverse (123433111), we get a palindrome (234767432).

The spelling of 111334321 in words is "one hundred eleven million, three hundred thirty-four thousand, three hundred twenty-one".