11201047 has 32 divisors (see below), whose sum is σ = 14172480. Its totient is φ = 8709120.

The previous prime is 11201041. The next prime is 11201059. The reversal of 11201047 is 74010211.

11201047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11201047 - 2³ = 11201039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11201047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153403 + ... + 153475.

It is an arithmetic number, because the mean of its divisors is an integer number (442890).

Almost surely, 2^11201047 is an apocalyptic number.

11201047 is the 2117-th heptagonal number.

11201047 is a deficient number, since it is larger than the sum of its proper divisors (2971433).

11201047 is a wasteful number, since it uses less digits than its factorization.

11201047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 11201047 is about 3346.7965280250. The cubic root of 11201047 is about 223.7447600283.

Adding to 11201047 its reverse (74010211), we get a palindrome (85211258).

The spelling of 11201047 in words is "eleven million, two hundred one thousand, forty-seven".