228368111 has 2 divisors, whose sum is σ = 228368112. Its totient is φ = 228368110.

The previous prime is 228368099. The next prime is 228368197. The reversal of 228368111 is 111863822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228368111 - 2⁶ = 228368047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228368411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114184055 + 114184056.

It is an arithmetic number, because the mean of its divisors is an integer number (114184056).

Almost surely, 2^228368111 is an apocalyptic number.

228368111 is a deficient number, since it is larger than the sum of its proper divisors (1).

228368111 is an equidigital number, since it uses as much as digits as its factorization.

228368111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 228368111 is about 15111.8533277689. The cubic root of 228368111 is about 611.2400743060.

The spelling of 228368111 in words is "two hundred twenty-eight million, three hundred sixty-eight thousand, one hundred eleven".