11404321 has 2 divisors, whose sum is σ = 11404322. Its totient is φ = 11404320.

The previous prime is 11404319. The next prime is 11404357. The reversal of 11404321 is 12340411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 215296 = 3345^2 + 464^2 .

It is an emirp because it is prime and its reverse (12340411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11404321 - 2¹ = 11404319 is a prime.

Together with 11404319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11404295 and 11404304.

It is not a weakly prime, because it can be changed into another prime (11404301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702160 + 5702161.

It is an arithmetic number, because the mean of its divisors is an integer number (5702161).

Almost surely, 2^11404321 is an apocalyptic number.

It is an amenable number.

11404321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11404321 is an equidigital number, since it uses as much as digits as its factorization.

11404321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11404321 is about 3377.0284274788. The cubic root of 11404321 is about 225.0901433043.

Adding to 11404321 its reverse (12340411), we get a palindrome (23744732).

The spelling of 11404321 in words is "eleven million, four hundred four thousand, three hundred twenty-one".