311028227 has 2 divisors, whose sum is σ = 311028228. Its totient is φ = 311028226.

The previous prime is 311028217. The next prime is 311028229. The reversal of 311028227 is 722820113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311028227 - 2⁶ = 311028163 is a prime.

Together with 311028229, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 311028196 and 311028205.

It is not a weakly prime, because it can be changed into another prime (311028229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155514113 + 155514114.

It is an arithmetic number, because the mean of its divisors is an integer number (155514114).

Almost surely, 2^311028227 is an apocalyptic number.

311028227 is a deficient number, since it is larger than the sum of its proper divisors (1).

311028227 is an equidigital number, since it uses as much as digits as its factorization.

311028227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 311028227 is about 17635.9923735524. The cubic root of 311028227 is about 677.5373922164.

The spelling of 311028227 in words is "three hundred eleven million, twenty-eight thousand, two hundred twenty-seven".