311212313201 has 2 divisors, whose sum is σ = 311212313202. Its totient is φ = 311212313200.

The previous prime is 311212313183. The next prime is 311212313219. The reversal of 311212313201 is 102313212113.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (311212313183) and next prime (311212313219).

It can be written as a sum of positive squares in only one way, i.e., 287296000000 + 23916313201 = 536000^2 + 154649^2 .

It is a cyclic number.

It is not a de Polignac number, because 311212313201 - 2³⁰ = 310138571377 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 (311212313231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155606156600 + 155606156601.

It is an arithmetic number, because the mean of its divisors is an integer number (155606156601).

Almost surely, 2^311212313201 is an apocalyptic number.

It is an amenable number.

311212313201 is a deficient number, since it is larger than the sum of its proper divisors (1).

311212313201 is an equidigital number, since it uses as much as digits as its factorization.

311212313201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311212313201 its reverse (102313212113), we get a palindrome (413525525314).

The spelling of 311212313201 in words is "three hundred eleven billion, two hundred twelve million, three hundred thirteen thousand, two hundred one".