12312023109 has 16 divisors (see below), whose sum is σ = 17008185600. Its totient is φ = 7912807616.

The previous prime is 12312023089. The next prime is 12312023131. The reversal of 12312023109 is 90132021321.

12312023109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12312023109 - 2⁵ = 12312023077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312023179) 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, 51549 + ... + 165170.

It is an arithmetic number, because the mean of its divisors is an integer number (1063011600).

Almost surely, 2^12312023109 is an apocalyptic number.

It is an amenable number.

12312023109 is a deficient number, since it is larger than the sum of its proper divisors (4696162491).

12312023109 is a wasteful number, since it uses less digits than its factorization.

12312023109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217404.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 12312023109 in words is "twelve billion, three hundred twelve million, twenty-three thousand, one hundred nine".