311010112230121 has 2 divisors, whose sum is σ = 311010112230122. Its totient is φ = 311010112230120.

The previous prime is 311010112230109. The next prime is 311010112230127. The reversal of 311010112230121 is 121032211010113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299908794515625 + 11101317714496 = 17317875^2 + 3331864^2 .

It is a cyclic number.

It is not a de Polignac number, because 311010112230121 - 2⁴¹ = 308811088974569 is a prime.

It is not a weakly prime, because it can be changed into another prime (311010112230127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155505056115060 + 155505056115061.

It is an arithmetic number, because the mean of its divisors is an integer number (155505056115061).

Almost surely, 2^{311010112230121} is an apocalyptic number.

It is an amenable number.

311010112230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

311010112230121 is an equidigital number, since it uses as much as digits as its factorization.

311010112230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 311010112230121 its reverse (121032211010113), we get a palindrome (432042323240234).

The spelling of 311010112230121 in words is "three hundred eleven trillion, ten billion, one hundred twelve million, two hundred thirty thousand, one hundred twenty-one".