11040003 has 32 divisors (see below), whose sum is σ = 17902080. Its totient is φ = 6683040.

The previous prime is 11039993. The next prime is 11040011. The reversal of 11040003 is 30004011.

It is not a de Polignac number, because 11040003 - 2¹⁸ = 10777859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11040103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24700 + ... + 25142.

It is an arithmetic number, because the mean of its divisors is an integer number (559440).

Almost surely, 2^11040003 is an apocalyptic number.

11040003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11040003 is a deficient number, since it is larger than the sum of its proper divisors (6862077).

11040003 is a wasteful number, since it uses less digits than its factorization.

11040003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 11040003 is about 3322.6499966141. The cubic root of 11040003 is about 222.6672764733.

Adding to 11040003 its reverse (30004011), we get a palindrome (41044014).

The spelling of 11040003 in words is "eleven million, forty thousand, three".