11271043 has 4 divisors (see below), whose sum is σ = 12881200. Its totient is φ = 9660888.

The previous prime is 11271019. The next prime is 11271061. The reversal of 11271043 is 34017211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11271043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11271043.

It is not an unprimeable number, because it can be changed into a prime (11271083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805068 + ... + 805081.

It is an arithmetic number, because the mean of its divisors is an integer number (3220300).

Almost surely, 2^11271043 is an apocalyptic number.

11271043 is a deficient number, since it is larger than the sum of its proper divisors (1610157).

11271043 is an equidigital number, since it uses as much as digits as its factorization.

11271043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610156.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11271043 is about 3357.2374059634. The cubic root of 11271043 is about 224.2098572746.

Adding to 11271043 its reverse (34017211), we get a palindrome (45288254).

The spelling of 11271043 in words is "eleven million, two hundred seventy-one thousand, forty-three".