311226341 has 2 divisors, whose sum is σ = 311226342. Its totient is φ = 311226340.

The previous prime is 311226337. The next prime is 311226353. The reversal of 311226341 is 143622113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155725441 + 155500900 = 12479^2 + 12470^2 .

It is an emirp because it is prime and its reverse (143622113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311226341 - 2² = 311226337 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311226371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155613170 + 155613171.

It is an arithmetic number, because the mean of its divisors is an integer number (155613171).

Almost surely, 2^311226341 is an apocalyptic number.

It is an amenable number.

311226341 is a deficient number, since it is larger than the sum of its proper divisors (1).

311226341 is an equidigital number, since it uses as much as digits as its factorization.

311226341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 311226341 is about 17641.6082316777. The cubic root of 311226341 is about 677.6812174832.

Adding to 311226341 its reverse (143622113), we get a palindrome (454848454).

The spelling of 311226341 in words is "three hundred eleven million, two hundred twenty-six thousand, three hundred forty-one".