11040203505 has 8 divisors (see below), whose sum is σ = 17664325632. Its totient is φ = 5888108528.

The previous prime is 11040203467. The next prime is 11040203521. The reversal of 11040203505 is 50530204011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11040203505 - 2¹² = 11040199409 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 368006769 + ... + 368006798.

It is an arithmetic number, because the mean of its divisors is an integer number (2208040704).

Almost surely, 2^11040203505 is an apocalyptic number.

11040203505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11040203505 is a deficient number, since it is larger than the sum of its proper divisors (6624122127).

11040203505 is an equidigital number, since it uses as much as digits as its factorization.

11040203505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736013575.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 11040203505 its reverse (50530204011), we get a palindrome (61570407516).

The spelling of 11040203505 in words is "eleven billion, forty million, two hundred three thousand, five hundred five".