12023032005 has 12 divisors (see below), whose sum is σ = 20839922220. Its totient is φ = 6412283712.

The previous prime is 12023032001. The next prime is 12023032039. The reversal of 12023032005 is 50023032021.

It can be written as a sum of positive squares in 2 ways, for example, as 5525543556 + 6497488449 = 74334^2 + 80607^2 .

It is not a de Polignac number, because 12023032005 - 2² = 12023032001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023032001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133589200 + ... + 133589289.

It is an arithmetic number, because the mean of its divisors is an integer number (1736660185).

Almost surely, 2^12023032005 is an apocalyptic number.

12023032005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12023032005 is a deficient number, since it is larger than the sum of its proper divisors (8816890215).

12023032005 is a wasteful number, since it uses less digits than its factorization.

12023032005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267178500 (or 267178497 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 12023032005 its reverse (50023032021), we get a palindrome (62046064026).

The spelling of 12023032005 in words is "twelve billion, twenty-three million, thirty-two thousand, five".