11320047 has 8 divisors (see below), whose sum is σ = 16770480. Its totient is φ = 7546680.

The previous prime is 11320031. The next prime is 11320061. The reversal of 11320047 is 74002311.

It is not a de Polignac number, because 11320047 - 2⁴ = 11320031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209604 + ... + 209657.

It is an arithmetic number, because the mean of its divisors is an integer number (2096310).

Almost surely, 2^11320047 is an apocalyptic number.

11320047 is a deficient number, since it is larger than the sum of its proper divisors (5450433).

11320047 is an equidigital number, since it uses as much as digits as its factorization.

11320047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419270 (or 419264 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 11320047 is about 3364.5277528949. The cubic root of 11320047 is about 224.5343257649.

Adding to 11320047 its reverse (74002311), we get a palindrome (85322358).

The spelling of 11320047 in words is "eleven million, three hundred twenty thousand, forty-seven".