12104041121 has 4 divisors (see below), whose sum is σ = 12109512852. Its totient is φ = 12098569392.

The previous prime is 12104041099. The next prime is 12104041129. The reversal of 12104041121 is 12114040121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12114040121 = 19 ⋅637581059.

It can be written as a sum of positive squares in 2 ways, for example, as 11681286400 + 422754721 = 108080^2 + 20561^2 .

It is a cyclic number.

It is not a de Polignac number, because 12104041121 - 2⁶ = 12104041057 is a prime.

It is a super-3 number, since 3×12104041121³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 12104041121.

It is not an unprimeable number, because it can be changed into a prime (12104041129) 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, 2732546 + ... + 2736971.

It is an arithmetic number, because the mean of its divisors is an integer number (3027378213).

Almost surely, 2^12104041121 is an apocalyptic number.

It is an amenable number.

12104041121 is a deficient number, since it is larger than the sum of its proper divisors (5471731).

12104041121 is an equidigital number, since it uses as much as digits as its factorization.

12104041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471730.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12104041121 its reverse (12114040121), we get a palindrome (24218081242).

The spelling of 12104041121 in words is "twelve billion, one hundred four million, forty-one thousand, one hundred twenty-one".