311345351 has 2 divisors, whose sum is σ = 311345352. Its totient is φ = 311345350.

The previous prime is 311345341. The next prime is 311345357. The reversal of 311345351 is 153543113.

It is a strong prime.

It is an emirp because it is prime and its reverse (153543113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311345351 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311345351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311345357) 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, 155672675 + 155672676.

It is an arithmetic number, because the mean of its divisors is an integer number (155672676).

Almost surely, 2^311345351 is an apocalyptic number.

311345351 is a deficient number, since it is larger than the sum of its proper divisors (1).

311345351 is an equidigital number, since it uses as much as digits as its factorization.

311345351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 311345351 is about 17644.9809010948. The cubic root of 311345351 is about 677.7675860980.

Adding to 311345351 its reverse (153543113), we get a palindrome (464888464).

The spelling of 311345351 in words is "three hundred eleven million, three hundred forty-five thousand, three hundred fifty-one".