311440110212009 has 2 divisors, whose sum is σ = 311440110212010. Its totient is φ = 311440110212008.

The previous prime is 311440110211961. The next prime is 311440110212017. The reversal of 311440110212009 is 900212011044113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259820871481600 + 51619238730409 = 16118960^2 + 7184653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311440110212009 is a prime.

It is not a weakly prime, because it can be changed into another prime (311440110212039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720055106004 + 155720055106005.

It is an arithmetic number, because the mean of its divisors is an integer number (155720055106005).

Almost surely, 2^{311440110212009} is an apocalyptic number.

It is an amenable number.

311440110212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

311440110212009 is an equidigital number, since it uses as much as digits as its factorization.

311440110212009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 311440110212009 in words is "three hundred eleven trillion, four hundred forty billion, one hundred ten million, two hundred twelve thousand, nine".