12102443004121 has 4 divisors (see below), whose sum is σ = 12102453982692. Its totient is φ = 12102432025552.

The previous prime is 12102443004103. The next prime is 12102443004131. The reversal of 12102443004121 is 12140034420121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2338036716096 + 9764406288025 = 1529064^2 + 3124805^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102443004121 - 2¹¹ = 12102443002073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102443004131) 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, 3624586 + ... + 6110851.

It is an arithmetic number, because the mean of its divisors is an integer number (3025613495673).

Almost surely, 2^{12102443004121} is an apocalyptic number.

It is an amenable number.

12102443004121 is a deficient number, since it is larger than the sum of its proper divisors (10978571).

12102443004121 is an equidigital number, since it uses as much as digits as its factorization.

12102443004121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978570.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 12102443004121 its reverse (12140034420121), we get a palindrome (24242477424242).

The spelling of 12102443004121 in words is "twelve trillion, one hundred two billion, four hundred forty-three million, four thousand, one hundred twenty-one".