12123323409 has 8 divisors (see below), whose sum is σ = 16175608000. Its totient is φ = 8076627216.

The previous prime is 12123323389. The next prime is 12123323411. The reversal of 12123323409 is 90432332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12123323409 - 2⁸ = 12123323153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12123323479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392034 + ... + 1400715.

It is an arithmetic number, because the mean of its divisors is an integer number (2021951000).

Almost surely, 2^12123323409 is an apocalyptic number.

It is an amenable number.

12123323409 is a deficient number, since it is larger than the sum of its proper divisors (4052284591).

12123323409 is a wasteful number, since it uses less digits than its factorization.

12123323409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794199.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 12123323409 in words is "twelve billion, one hundred twenty-three million, three hundred twenty-three thousand, four hundred nine".