12003030312 has 96 divisors (see below), whose sum is σ = 37135414080. Its totient is φ = 3165626880.

The previous prime is 12003030293. The next prime is 12003030323. The reversal of 12003030312 is 21303030021.

It is a junction number, because it is equal to n+sod(n) for n = 12003030291 and 12003030300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182989 + ... + 239772.

It is an arithmetic number, because the mean of its divisors is an integer number (386827230).

Almost surely, 2^12003030312 is an apocalyptic number.

12003030312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12003030312 is an abundant number, since it is smaller than the sum of its proper divisors (25132383768).

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

12003030312 is a wasteful number, since it uses less digits than its factorization.

12003030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422803 (or 422786 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 12003030312 its reverse (21303030021), we get a palindrome (33306060333).

The spelling of 12003030312 in words is "twelve billion, three million, thirty thousand, three hundred twelve".