311253443311 has 2 divisors, whose sum is σ = 311253443312. Its totient is φ = 311253443310.

The previous prime is 311253443297. The next prime is 311253443317. The reversal of 311253443311 is 113344352113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311253443311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311253443317) 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, 155626721655 + 155626721656.

It is an arithmetic number, because the mean of its divisors is an integer number (155626721656).

Almost surely, 2^311253443311 is an apocalyptic number.

311253443311 is a deficient number, since it is larger than the sum of its proper divisors (1).

311253443311 is an equidigital number, since it uses as much as digits as its factorization.

311253443311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

Adding to 311253443311 its reverse (113344352113), we get a palindrome (424597795424).

The spelling of 311253443311 in words is "three hundred eleven billion, two hundred fifty-three million, four hundred forty-three thousand, three hundred eleven".