11104421 has 2 divisors, whose sum is σ = 11104422. Its totient is φ = 11104420.

The previous prime is 11104411. The next prime is 11104427. The reversal of 11104421 is 12440111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9541921 + 1562500 = 3089^2 + 1250^2 .

It is an emirp because it is prime and its reverse (12440111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11104421 - 2¹⁴ = 11088037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11104396 and 11104405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11104427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552210 + 5552211.

It is an arithmetic number, because the mean of its divisors is an integer number (5552211).

Almost surely, 2^11104421 is an apocalyptic number.

It is an amenable number.

11104421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11104421 is an equidigital number, since it uses as much as digits as its factorization.

11104421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 11104421 is about 3332.3296655643. The cubic root of 11104421 is about 223.0995218942.

Adding to 11104421 its reverse (12440111), we get a palindrome (23544532).

The spelling of 11104421 in words is "eleven million, one hundred four thousand, four hundred twenty-one".