311201221327 has 2 divisors, whose sum is σ = 311201221328. Its totient is φ = 311201221326.

The previous prime is 311201221211. The next prime is 311201221333. The reversal of 311201221327 is 723122102113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311201221327 - 2²³ = 311192832719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311201221337) 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, 155600610663 + 155600610664.

It is an arithmetic number, because the mean of its divisors is an integer number (155600610664).

Almost surely, 2^311201221327 is an apocalyptic number.

311201221327 is a deficient number, since it is larger than the sum of its proper divisors (1).

311201221327 is an equidigital number, since it uses as much as digits as its factorization.

311201221327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 311201221327 in words is "three hundred eleven billion, two hundred one million, two hundred twenty-one thousand, three hundred twenty-seven".