12004031320 has 32 divisors (see below), whose sum is σ = 27014206320. Its totient is φ = 4800699520.

The previous prime is 12004031311. The next prime is 12004031357. The reversal of 12004031320 is 2313040021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12004031294 and 12004031303.

It is a congruent number.

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, 208839 + ... + 260041.

Almost surely, 2^12004031320 is an apocalyptic number.

12004031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12004031320 is an abundant number, since it is smaller than the sum of its proper divisors (15010175000).

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

12004031320 is a wasteful number, since it uses less digits than its factorization.

12004031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57075 (or 57071 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12004031320 its reverse (2313040021), we get a palindrome (14317071341).

The spelling of 12004031320 in words is "twelve billion, four million, thirty-one thousand, three hundred twenty".