12123055205 has 8 divisors (see below), whose sum is σ = 14731814400. Its totient is φ = 9575678736.

The previous prime is 12123055201. The next prime is 12123055213. The reversal of 12123055205 is 50255032121.

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

It is a cyclic number.

It is not a de Polignac number, because 12123055205 - 2² = 12123055201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123055201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15345245 + ... + 15346034.

It is an arithmetic number, because the mean of its divisors is an integer number (1841476800).

Almost surely, 2^12123055205 is an apocalyptic number.

It is an amenable number.

12123055205 is a deficient number, since it is larger than the sum of its proper divisors (2608759195).

12123055205 is an equidigital number, since it uses as much as digits as its factorization.

12123055205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30691363.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 12123055205 its reverse (50255032121), we get a palindrome (62378087326).

The spelling of 12123055205 in words is "twelve billion, one hundred twenty-three million, fifty-five thousand, two hundred five".