12200112123 has 4 divisors (see below), whose sum is σ = 16266816168. Its totient is φ = 8133408080.

The previous prime is 12200112107. The next prime is 12200112143. The reversal of 12200112123 is 32121100221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12200112123 - 2⁴ = 12200112107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12200112143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033352018 + ... + 2033352023.

It is an arithmetic number, because the mean of its divisors is an integer number (4066704042).

Almost surely, 2^12200112123 is an apocalyptic number.

12200112123 is a deficient number, since it is larger than the sum of its proper divisors (4066704045).

12200112123 is an equidigital number, since it uses as much as digits as its factorization.

12200112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066704044.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12200112123 its reverse (32121100221), we get a palindrome (44321212344).

The spelling of 12200112123 in words is "twelve billion, two hundred million, one hundred twelve thousand, one hundred twenty-three".