12308391017 has 16 divisors (see below), whose sum is σ = 14054881680. Its totient is φ = 10678044672.

The previous prime is 12308390987. The next prime is 12308391059. The reversal of 12308391017 is 71019380321.

It is a happy number.

12308391017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2637438736 + 9670952281 = 51356^2 + 98341^2 .

It is a cyclic number.

It is not a de Polignac number, because 12308391017 - 2¹² = 12308386921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12308391617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117413 + ... + 195965.

It is an arithmetic number, because the mean of its divisors is an integer number (878430105).

Almost surely, 2^12308391017 is an apocalyptic number.

12308391017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12308391017 is a deficient number, since it is larger than the sum of its proper divisors (1746490663).

12308391017 is a wasteful number, since it uses less digits than its factorization.

12308391017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79292.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 12308391017 in words is "twelve billion, three hundred eight million, three hundred ninety-one thousand, seventeen".