11104012121 has 2 divisors, whose sum is σ = 11104012122. Its totient is φ = 11104012120.

The previous prime is 11104012063. The next prime is 11104012141. The reversal of 11104012121 is 12121040111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6324225625 + 4779786496 = 79525^2 + 69136^2 .

It is a cyclic number.

It is not a de Polignac number, because 11104012121 - 2⁶ = 11104012057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11104012096 and 11104012105.

It is not a weakly prime, because it can be changed into another prime (11104012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552006060 + 5552006061.

It is an arithmetic number, because the mean of its divisors is an integer number (5552006061).

Almost surely, 2^11104012121 is an apocalyptic number.

It is an amenable number.

11104012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11104012121 is an equidigital number, since it uses as much as digits as its factorization.

11104012121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11104012121 its reverse (12121040111), we get a palindrome (23225052232).

The spelling of 11104012121 in words is "eleven billion, one hundred four million, twelve thousand, one hundred twenty-one".