311041930211 has 2 divisors, whose sum is σ = 311041930212. Its totient is φ = 311041930210.

The previous prime is 311041930169. The next prime is 311041930219. The reversal of 311041930211 is 112039140113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311041930211 is a prime.

It is not a weakly prime, because it can be changed into another prime (311041930219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155520965105 + 155520965106.

It is an arithmetic number, because the mean of its divisors is an integer number (155520965106).

Almost surely, 2^311041930211 is an apocalyptic number.

311041930211 is a deficient number, since it is larger than the sum of its proper divisors (1).

311041930211 is an equidigital number, since it uses as much as digits as its factorization.

311041930211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 311041930211 in words is "three hundred eleven billion, forty-one million, nine hundred thirty thousand, two hundred eleven".