311222344541413 has 2 divisors, whose sum is σ = 311222344541414. Its totient is φ = 311222344541412.

The previous prime is 311222344541323. The next prime is 311222344541419. The reversal of 311222344541413 is 314145443222113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306288606216609 + 4933738324804 = 17501103^2 + 2221202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311222344541413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311222344541419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155611172270706 + 155611172270707.

It is an arithmetic number, because the mean of its divisors is an integer number (155611172270707).

Almost surely, 2^{311222344541413} is an apocalyptic number.

It is an amenable number.

311222344541413 is a deficient number, since it is larger than the sum of its proper divisors (1).

311222344541413 is an equidigital number, since it uses as much as digits as its factorization.

311222344541413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 40.

Adding to 311222344541413 its reverse (314145443222113), we get a palindrome (625367787763526).

The spelling of 311222344541413 in words is "three hundred eleven trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred forty-one thousand, four hundred thirteen".