12111211203 has 32 divisors (see below), whose sum is σ = 19900102656. Its totient is φ = 6380201088.

The previous prime is 12111211201. The next prime is 12111211289. The reversal of 12111211203 is 30211211121.

12111211203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12111211203 - 2¹ = 12111211201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111211201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189750 + ... + 245412.

It is an arithmetic number, because the mean of its divisors is an integer number (621878208).

Almost surely, 2^12111211203 is an apocalyptic number.

12111211203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12111211203 is a deficient number, since it is larger than the sum of its proper divisors (7788891453).

12111211203 is a wasteful number, since it uses less digits than its factorization.

12111211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56483.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12111211203 its reverse (30211211121), we get a palindrome (42322422324).

The spelling of 12111211203 in words is "twelve billion, one hundred eleven million, two hundred eleven thousand, two hundred three".