11320247 has 2 divisors, whose sum is σ = 11320248. Its totient is φ = 11320246.

The previous prime is 11320229. The next prime is 11320259. The reversal of 11320247 is 74202311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11320247 - 2¹⁰ = 11319223 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 (11320277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660123 + 5660124.

It is an arithmetic number, because the mean of its divisors is an integer number (5660124).

Almost surely, 2^11320247 is an apocalyptic number.

11320247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11320247 is an equidigital number, since it uses as much as digits as its factorization.

11320247 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 20.

The square root of 11320247 is about 3364.5574746168. The cubic root of 11320247 is about 224.5356480975.

Adding to 11320247 its reverse (74202311), we get a palindrome (85522558).

The spelling of 11320247 in words is "eleven million, three hundred twenty thousand, two hundred forty-seven".