11040321243 has 16 divisors (see below), whose sum is σ = 16825502720. Its totient is φ = 6307946496.

The previous prime is 11040321209. The next prime is 11040321263. The reversal of 11040321243 is 34212304011.

It is not a de Polignac number, because 11040321243 - 2¹³ = 11040313051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040321263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159963 + ... + 218331.

It is an arithmetic number, because the mean of its divisors is an integer number (1051593920).

Almost surely, 2^11040321243 is an apocalyptic number.

11040321243 is a deficient number, since it is larger than the sum of its proper divisors (5785181477).

11040321243 is an equidigital number, since it uses as much as digits as its factorization.

11040321243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67386.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11040321243 its reverse (34212304011), we get a palindrome (45252625254).

The spelling of 11040321243 in words is "eleven billion, forty million, three hundred twenty-one thousand, two hundred forty-three".