311442353 has 2 divisors, whose sum is σ = 311442354. Its totient is φ = 311442352.

The previous prime is 311442323. The next prime is 311442359. The reversal of 311442353 is 353244113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236913664 + 74528689 = 15392^2 + 8633^2 .

It is an emirp because it is prime and its reverse (353244113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311442353 - 2⁶ = 311442289 is a prime.

It is not a weakly prime, because it can be changed into another prime (311442359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155721176 + 155721177.

It is an arithmetic number, because the mean of its divisors is an integer number (155721177).

Almost surely, 2^311442353 is an apocalyptic number.

It is an amenable number.

311442353 is a deficient number, since it is larger than the sum of its proper divisors (1).

311442353 is an equidigital number, since it uses as much as digits as its factorization.

311442353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 311442353 is about 17647.7294006906. The cubic root of 311442353 is about 677.8379666626.

Adding to 311442353 its reverse (353244113), we get a palindrome (664686466).

The spelling of 311442353 in words is "three hundred eleven million, four hundred forty-two thousand, three hundred fifty-three".