228320113 has 8 divisors (see below), whose sum is σ = 261031232. Its totient is φ = 195632496.

The previous prime is 228320089. The next prime is 228320117. The reversal of 228320113 is 311023822.

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 228320113 - 2¹⁷ = 228189041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228320117) 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 7 ways as a sum of consecutive naturals, for example, 27931 + ... + 35167.

It is an arithmetic number, because the mean of its divisors is an integer number (32628904).

Almost surely, 2^228320113 is an apocalyptic number.

It is an amenable number.

228320113 is a deficient number, since it is larger than the sum of its proper divisors (32711119).

228320113 is an equidigital number, since it uses as much as digits as its factorization.

228320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11751.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 228320113 is about 15110.2651531997. The cubic root of 228320113 is about 611.1972481913.

Adding to 228320113 its reverse (311023822), we get a palindrome (539343935).

The spelling of 228320113 in words is "two hundred twenty-eight million, three hundred twenty thousand, one hundred thirteen".