10311044209 has 2 divisors, whose sum is σ = 10311044210. Its totient is φ = 10311044208.

The previous prime is 10311044207. The next prime is 10311044239. The reversal of 10311044209 is 90244011301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8408339809 + 1902704400 = 91697^2 + 43620^2 .

It is a cyclic number.

It is not a de Polignac number, because 10311044209 - 2¹ = 10311044207 is a prime.

Together with 10311044207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10311044201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155522104 + 5155522105.

It is an arithmetic number, because the mean of its divisors is an integer number (5155522105).

Almost surely, 2^10311044209 is an apocalyptic number.

It is an amenable number.

10311044209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10311044209 is an equidigital number, since it uses as much as digits as its factorization.

10311044209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 10311044209 in words is "ten billion, three hundred eleven million, forty-four thousand, two hundred nine".