12004123012 has 24 divisors (see below), whose sum is σ = 25271839040. Its totient is φ = 4873854240.

The previous prime is 12004122997. The next prime is 12004123057. The reversal of 12004123012 is 21032140021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11281539 + ... + 11282602.

Almost surely, 2^12004123012 is an apocalyptic number.

It is an amenable number.

12004123012 is an abundant number, since it is smaller than the sum of its proper divisors (13267716028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12004123012 is a wasteful number, since it uses less digits than its factorization.

12004123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22564171 (or 22564169 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12004123012 its reverse (21032140021), we get a palindrome (33036263033).

The spelling of 12004123012 in words is "twelve billion, four million, one hundred twenty-three thousand, twelve".