12123102203 has 32 divisors (see below), whose sum is σ = 13768704000. Its totient is φ = 10613352960.

The previous prime is 12123102197. The next prime is 12123102217. The reversal of 12123102203 is 30220132121.

It is not a de Polignac number, because 12123102203 - 2¹² = 12123098107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123102263) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3650978 + ... + 3654296.

It is an arithmetic number, because the mean of its divisors is an integer number (430272000).

Almost surely, 2^12123102203 is an apocalyptic number.

12123102203 is a deficient number, since it is larger than the sum of its proper divisors (1645601797).

12123102203 is a wasteful number, since it uses less digits than its factorization.

12123102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12123102203 its reverse (30220132121), we get a palindrome (42343234324).

The spelling of 12123102203 in words is "twelve billion, one hundred twenty-three million, one hundred two thousand, two hundred three".