311122343101 has 2 divisors, whose sum is σ = 311122343102. Its totient is φ = 311122343100.

The previous prime is 311122343057. The next prime is 311122343183. The reversal of 311122343101 is 101343221113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300056355076 + 11065988025 = 547774^2 + 105195^2 .

It is a cyclic number.

It is not a de Polignac number, because 311122343101 - 2¹¹ = 311122341053 is a prime.

It is a super-2 number, since 2×311122343101² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311122343501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155561171550 + 155561171551.

It is an arithmetic number, because the mean of its divisors is an integer number (155561171551).

Almost surely, 2^311122343101 is an apocalyptic number.

It is an amenable number.

311122343101 is a deficient number, since it is larger than the sum of its proper divisors (1).

311122343101 is an equidigital number, since it uses as much as digits as its factorization.

311122343101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 311122343101 its reverse (101343221113), we get a palindrome (412465564214).

The spelling of 311122343101 in words is "three hundred eleven billion, one hundred twenty-two million, three hundred forty-three thousand, one hundred one".