12003323904 has 780 divisors, whose sum is σ = 44290768368. Its totient is φ = 3211591680.

The previous prime is 12003323873. The next prime is 12003323921. The reversal of 12003323904 is 40932330021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 521883637 + ... + 521883659.

Almost surely, 2^12003323904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12003323904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22145384184).

12003323904 is an abundant number, since it is smaller than the sum of its proper divisors (32287444464).

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

12003323904 is a wasteful number, since it uses less digits than its factorization.

12003323904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12003323904 its reverse (40932330021), we get a palindrome (52935653925).

The spelling of 12003323904 in words is "twelve billion, three million, three hundred twenty-three thousand, nine hundred four".