12012403404 has 24 divisors (see below), whose sum is σ = 28933101568. Its totient is φ = 3874968720.

The previous prime is 12012403391. The next prime is 12012403411. The reversal of 12012403404 is 40430421021.

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, 16145332 + ... + 16146075.

Almost surely, 2^12012403404 is an apocalyptic number.

It is an amenable number.

12012403404 is an abundant number, since it is smaller than the sum of its proper divisors (16920698164).

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

12012403404 is a wasteful number, since it uses less digits than its factorization.

12012403404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32291445 (or 32291443 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12012403404 its reverse (40430421021), we get a palindrome (52442824425).

It can be divided in two parts, 12012 and 403404, that added together give a triangular number (415416 = T₉₁₁).

The spelling of 12012403404 in words is "twelve billion, twelve million, four hundred three thousand, four hundred four".