11304421 has 2 divisors, whose sum is σ = 11304422. Its totient is φ = 11304420.

The previous prime is 11304413. The next prime is 11304427. The reversal of 11304421 is 12440311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11296321 + 8100 = 3361^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 11304421 - 2³ = 11304413 is a prime.

It is a super-3 number, since 3×11304421³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11304395 and 11304404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11304427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652210 + 5652211.

It is an arithmetic number, because the mean of its divisors is an integer number (5652211).

Almost surely, 2^11304421 is an apocalyptic number.

It is an amenable number.

11304421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11304421 is an equidigital number, since it uses as much as digits as its factorization.

11304421 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11304421 is about 3362.2047825794. The cubic root of 11304421 is about 224.4309637381.

Adding to 11304421 its reverse (12440311), we get a palindrome (23744732).

The spelling of 11304421 in words is "eleven million, three hundred four thousand, four hundred twenty-one".