12111203301312 has 56 divisors (see below), whose sum is σ = 32430300448896. Its totient is φ = 3988428391168.

The previous prime is 12111203301289. The next prime is 12111203301341. The reversal of 12111203301312 is 21310330211121.

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, 379979148 + ... + 380011019.

It is an arithmetic number, because the mean of its divisors is an integer number (579112508016).

Almost surely, 2^{12111203301312} is an apocalyptic number.

12111203301312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12111203301312 is an abundant number, since it is smaller than the sum of its proper divisors (20319097147584).

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

12111203301312 is an equidigital number, since it uses as much as digits as its factorization.

12111203301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759990265 (or 759990255 counting only the distinct ones).

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

Adding to 12111203301312 its reverse (21310330211121), we get a palindrome (33421533512433).

The spelling of 12111203301312 in words is "twelve trillion, one hundred eleven billion, two hundred three million, three hundred one thousand, three hundred twelve".