311122332113 has 2 divisors, whose sum is σ = 311122332114. Its totient is φ = 311122332112.

The previous prime is 311122332109. The next prime is 311122332121. The reversal of 311122332113 is 311233221113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298124736064 + 12997596049 = 546008^2 + 114007^2 .

It is a cyclic number.

It is not a de Polignac number, because 311122332113 - 2² = 311122332109 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 (311122332163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155561166056 + 155561166057.

It is an arithmetic number, because the mean of its divisors is an integer number (155561166057).

Almost surely, 2^311122332113 is an apocalyptic number.

It is an amenable number.

311122332113 is a deficient number, since it is larger than the sum of its proper divisors (1).

311122332113 is an equidigital number, since it uses as much as digits as its factorization.

311122332113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

Adding to 311122332113 its reverse (311233221113), we get a palindrome (622355553226).

The spelling of 311122332113 in words is "three hundred eleven billion, one hundred twenty-two million, three hundred thirty-two thousand, one hundred thirteen".