11203047 has 12 divisors (see below), whose sum is σ = 16886064. Its totient is φ = 7143840.

The previous prime is 11203039. The next prime is 11203057. The reversal of 11203047 is 74030211.

It is not a de Polignac number, because 11203047 - 2³ = 11203039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26854 + ... + 27267.

It is an arithmetic number, because the mean of its divisors is an integer number (1407172).

Almost surely, 2^11203047 is an apocalyptic number.

11203047 is a deficient number, since it is larger than the sum of its proper divisors (5683017).

11203047 is a wasteful number, since it uses less digits than its factorization.

11203047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54150 (or 54147 counting only the distinct ones).

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

The square root of 11203047 is about 3347.0953078752. The cubic root of 11203047 is about 223.7580761314.

Adding to 11203047 its reverse (74030211), we get a palindrome (85233258).

The spelling of 11203047 in words is "eleven million, two hundred three thousand, forty-seven".