311212202017 has 2 divisors, whose sum is σ = 311212202018. Its totient is φ = 311212202016.

The previous prime is 311212202003. The next prime is 311212202027. The reversal of 311212202017 is 710202212113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298614159936 + 12598042081 = 546456^2 + 112241^2 .

It is a cyclic number.

It is not a de Polignac number, because 311212202017 - 2¹⁵ = 311212169249 is a prime.

It is not a weakly prime, because it can be changed into another prime (311212202027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155606101008 + 155606101009.

It is an arithmetic number, because the mean of its divisors is an integer number (155606101009).

Almost surely, 2^311212202017 is an apocalyptic number.

It is an amenable number.

311212202017 is a deficient number, since it is larger than the sum of its proper divisors (1).

311212202017 is an equidigital number, since it uses as much as digits as its factorization.

311212202017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The spelling of 311212202017 in words is "three hundred eleven billion, two hundred twelve million, two hundred two thousand, seventeen".