11005043 has 4 divisors (see below), whose sum is σ = 12577200. Its totient is φ = 9432888.

The previous prime is 11005037. The next prime is 11005051. The reversal of 11005043 is 34050011.

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

It is a cyclic number.

It is not a de Polignac number, because 11005043 - 2⁶ = 11004979 is a prime.

It is a super-2 number, since 2×11005043² = 242221942863698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11005013) 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, 786068 + ... + 786081.

It is an arithmetic number, because the mean of its divisors is an integer number (3144300).

Almost surely, 2^11005043 is an apocalyptic number.

11005043 is a deficient number, since it is larger than the sum of its proper divisors (1572157).

11005043 is an equidigital number, since it uses as much as digits as its factorization.

11005043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572156.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 11005043 is about 3317.3849640945. The cubic root of 11005043 is about 222.4319903239.

Adding to 11005043 its reverse (34050011), we get a palindrome (45055054).

The spelling of 11005043 in words is "eleven million, five thousand, forty-three".