111230321 has 4 divisors (see below), whose sum is σ = 111478500. Its totient is φ = 110982144.

The previous prime is 111230311. The next prime is 111230359. The reversal of 111230321 is 123032111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123032111 = 17 ⋅7237183.

It can be written as a sum of positive squares in 2 ways, for example, as 90935296 + 20295025 = 9536^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 111230321 - 2⁶ = 111230257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111230296 and 111230305.

It is not an unprimeable number, because it can be changed into a prime (111230311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123416 + ... + 124313.

It is an arithmetic number, because the mean of its divisors is an integer number (27869625).

Almost surely, 2^111230321 is an apocalyptic number.

It is an amenable number.

111230321 is a deficient number, since it is larger than the sum of its proper divisors (248179).

111230321 is an equidigital number, since it uses as much as digits as its factorization.

111230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248178.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 111230321 is about 10546.5786395399. The cubic root of 111230321 is about 480.9217257294.

Adding to 111230321 its reverse (123032111), we get a palindrome (234262432).

It can be divided in two parts, 11 and 1230321, that multiplied together give a palindrome (13533531).

The spelling of 111230321 in words is "one hundred eleven million, two hundred thirty thousand, three hundred twenty-one".