311441224313 has 2 divisors, whose sum is σ = 311441224314. Its totient is φ = 311441224312.

The previous prime is 311441224309. The next prime is 311441224397. The reversal of 311441224313 is 313422144113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262755684409 + 48685539904 = 512597^2 + 220648^2 .

It is a cyclic number.

It is not a de Polignac number, because 311441224313 - 2² = 311441224309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (311441224013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720612156 + 155720612157.

It is an arithmetic number, because the mean of its divisors is an integer number (155720612157).

Almost surely, 2^311441224313 is an apocalyptic number.

It is an amenable number.

311441224313 is a deficient number, since it is larger than the sum of its proper divisors (1).

311441224313 is an equidigital number, since it uses as much as digits as its factorization.

311441224313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

Adding to 311441224313 its reverse (313422144113), we get a palindrome (624863368426).

The spelling of 311441224313 in words is "three hundred eleven billion, four hundred forty-one million, two hundred twenty-four thousand, three hundred thirteen".