12123212104241 has 4 divisors (see below), whose sum is σ = 13855099547712. Its totient is φ = 10391324660772.

The previous prime is 12123212104229. The next prime is 12123212104261. The reversal of 12123212104241 is 14240121232121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12123212104241 - 2³⁰ = 12122138362417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12123212104241.

It is not an unprimeable number, because it can be changed into a prime (12123212104261) 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 in 3 ways as a sum of consecutive naturals, for example, 865943721725 + ... + 865943721738.

It is an arithmetic number, because the mean of its divisors is an integer number (3463774886928).

Almost surely, 2^{12123212104241} is an apocalyptic number.

It is an amenable number.

12123212104241 is a deficient number, since it is larger than the sum of its proper divisors (1731887443471).

12123212104241 is an equidigital number, since it uses as much as digits as its factorization.

12123212104241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731887443470.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 12123212104241 its reverse (14240121232121), we get a palindrome (26363333336362).

The spelling of 12123212104241 in words is "twelve trillion, one hundred twenty-three billion, two hundred twelve million, one hundred four thousand, two hundred forty-one".