12030311311212 has 24 divisors (see below), whose sum is σ = 28071520185856. Its totient is φ = 4009990371408.

The previous prime is 12030311311189. The next prime is 12030311311243. The reversal of 12030311311212 is 21211311303021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13732288 + ... + 14582055.

Almost surely, 2^{12030311311212} is an apocalyptic number.

12030311311212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12030311311212 is an abundant number, since it is smaller than the sum of its proper divisors (16041208874644).

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

12030311311212 is a wasteful number, since it uses less digits than its factorization.

12030311311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28349757 (or 28349755 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12030311311212 its reverse (21211311303021), we get a palindrome (33241622614233).

The spelling of 12030311311212 in words is "twelve trillion, thirty billion, three hundred eleven million, three hundred eleven thousand, two hundred twelve".