311111441413 has 2 divisors, whose sum is σ = 311111441414. Its totient is φ = 311111441412.

The previous prime is 311111441371. The next prime is 311111441423. The reversal of 311111441413 is 314144111113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303416993889 + 7694447524 = 550833^2 + 87718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311111441413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311111441423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155555720706 + 155555720707.

It is an arithmetic number, because the mean of its divisors is an integer number (155555720707).

Almost surely, 2^311111441413 is an apocalyptic number.

It is an amenable number.

311111441413 is a deficient number, since it is larger than the sum of its proper divisors (1).

311111441413 is an equidigital number, since it uses as much as digits as its factorization.

311111441413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

Adding to 311111441413 its reverse (314144111113), we get a palindrome (625255552526).

The spelling of 311111441413 in words is "three hundred eleven billion, one hundred eleven million, four hundred forty-one thousand, four hundred thirteen".