228080311 has 4 divisors (see below), whose sum is σ = 228115800. Its totient is φ = 228044824.

The previous prime is 228080297. The next prime is 228080317. The reversal of 228080311 is 113080822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113080822 = 2 ⋅56540411.

It is a cyclic number.

It is not a de Polignac number, because 228080311 - 2⁷ = 228080183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228080317) 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, 5101 + ... + 21958.

It is an arithmetic number, because the mean of its divisors is an integer number (57028950).

Almost surely, 2^228080311 is an apocalyptic number.

228080311 is a deficient number, since it is larger than the sum of its proper divisors (35489).

228080311 is an equidigital number, since it uses as much as digits as its factorization.

228080311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35488.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 228080311 is about 15102.3279993516. The cubic root of 228080311 is about 610.9831954113.

The spelling of 228080311 in words is "two hundred twenty-eight million, eighty thousand, three hundred eleven".