12201002123 has 2 divisors, whose sum is σ = 12201002124. Its totient is φ = 12201002122.

The previous prime is 12201002113. The next prime is 12201002129. The reversal of 12201002123 is 32120010221.

It is a happy number.

12201002123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12201002123 - 2²⁰ = 12199953547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201002098 and 12201002107.

It is not a weakly prime, because it can be changed into another prime (12201002129) 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 as a sum of consecutive naturals, namely, 6100501061 + 6100501062.

It is an arithmetic number, because the mean of its divisors is an integer number (6100501062).

Almost surely, 2^12201002123 is an apocalyptic number.

12201002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201002123 is an equidigital number, since it uses as much as digits as its factorization.

12201002123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12201002123 its reverse (32120010221), we get a palindrome (44321012344).

The spelling of 12201002123 in words is "twelve billion, two hundred one million, two thousand, one hundred twenty-three".