320228771 has 2 divisors, whose sum is σ = 320228772. Its totient is φ = 320228770.

The previous prime is 320228761. The next prime is 320228773. The reversal of 320228771 is 177822023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320228771 - 2⁶ = 320228707 is a prime.

Together with 320228773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320228773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160114385 + 160114386.

It is an arithmetic number, because the mean of its divisors is an integer number (160114386).

Almost surely, 2^320228771 is an apocalyptic number.

320228771 is a deficient number, since it is larger than the sum of its proper divisors (1).

320228771 is an equidigital number, since it uses as much as digits as its factorization.

320228771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 320228771 is about 17894.9370214036. The cubic root of 320228771 is about 684.1533368881.

The spelling of 320228771 in words is "three hundred twenty million, two hundred twenty-eight thousand, seven hundred seventy-one".