11326421 has 2 divisors, whose sum is σ = 11326422. Its totient is φ = 11326420.

The previous prime is 11326411. The next prime is 11326423. The reversal of 11326421 is 12462311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5827396 + 5499025 = 2414^2 + 2345^2 .

It is an emirp because it is prime and its reverse (12462311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11326421 - 2¹⁰ = 11325397 is a prime.

Together with 11326423, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 11326421 parts by 4759 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 11326393 and 11326402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11326423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5663210 + 5663211.

It is an arithmetic number, because the mean of its divisors is an integer number (5663211).

Almost surely, 2^11326421 is an apocalyptic number.

It is an amenable number.

11326421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11326421 is an equidigital number, since it uses as much as digits as its factorization.

11326421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 11326421 is about 3365.4748550539. The cubic root of 11326421 is about 224.5764608449.

Adding to 11326421 its reverse (12462311), we get a palindrome (23788732).

The spelling of 11326421 in words is "eleven million, three hundred twenty-six thousand, four hundred twenty-one".