12005123383 has 4 divisors (see below), whose sum is σ = 13096498248. Its totient is φ = 10913748520.

The previous prime is 12005123371. The next prime is 12005123387. The reversal of 12005123383 is 38332150021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12005123383 - 2¹³ = 12005115191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005123387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545687416 + ... + 545687437.

It is an arithmetic number, because the mean of its divisors is an integer number (3274124562).

Almost surely, 2^12005123383 is an apocalyptic number.

12005123383 is a deficient number, since it is larger than the sum of its proper divisors (1091374865).

12005123383 is a wasteful number, since it uses less digits than its factorization.

12005123383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091374864.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 12005123383 in words is "twelve billion, five million, one hundred twenty-three thousand, three hundred eighty-three".