11321087 has 2 divisors, whose sum is σ = 11321088. Its totient is φ = 11321086.

The previous prime is 11321081. The next prime is 11321119. The reversal of 11321087 is 78012311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11321087 - 2⁴ = 11321071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660543 + 5660544.

It is an arithmetic number, because the mean of its divisors is an integer number (5660544).

Almost surely, 2^11321087 is an apocalyptic number.

11321087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321087 is an equidigital number, since it uses as much as digits as its factorization.

11321087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11321087 is about 3364.6823029820. The cubic root of 11321087 is about 224.5412017243.

Adding to 11321087 its reverse (78012311), we get a palindrome (89333398).

The spelling of 11321087 in words is "eleven million, three hundred twenty-one thousand, eighty-seven".