12102100203 has 8 divisors (see below), whose sum is σ = 16145345488. Its totient is φ = 8063460864.

The previous prime is 12102100163. The next prime is 12102100247. The reversal of 12102100203 is 30200120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12102100203 - 2²¹ = 12100003051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102101203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1145350 + ... + 1155867.

It is an arithmetic number, because the mean of its divisors is an integer number (2018168186).

Almost surely, 2^12102100203 is an apocalyptic number.

12102100203 is a deficient number, since it is larger than the sum of its proper divisors (4043245285).

12102100203 is a wasteful number, since it uses less digits than its factorization.

12102100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302973.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12102100203 its reverse (30200120121), we get a palindrome (42302220324).

The spelling of 12102100203 in words is "twelve billion, one hundred two million, one hundred thousand, two hundred three".