12004123013 has 4 divisors (see below), whose sum is σ = 12025220460. Its totient is φ = 11983025568.

The previous prime is 12004122997. The next prime is 12004123057. The reversal of 12004123013 is 31032140021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3457675204 + 8546447809 = 58802^2 + 92447^2 .

It is a cyclic number.

It is not a de Polignac number, because 12004123013 - 2⁴ = 12004122997 is a prime.

It is a super-2 number, since 2×12004123013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12004122982 and 12004123000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004123073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10547870 + ... + 10549007.

It is an arithmetic number, because the mean of its divisors is an integer number (3006305115).

Almost surely, 2^12004123013 is an apocalyptic number.

It is an amenable number.

12004123013 is a deficient number, since it is larger than the sum of its proper divisors (21097447).

12004123013 is an equidigital number, since it uses as much as digits as its factorization.

12004123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21097446.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12004123013 its reverse (31032140021), we get a palindrome (43036263034).

The spelling of 12004123013 in words is "twelve billion, four million, one hundred twenty-three thousand, thirteen".