11011311003 has 32 divisors (see below), whose sum is σ = 18319859712. Its totient is φ = 5715367200.

The previous prime is 11011310987. The next prime is 11011311029. The reversal of 11011311003 is 30011311011.

It is not a de Polignac number, because 11011311003 - 2⁴ = 11011310987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011311003.

It is not an unprimeable number, because it can be changed into a prime (11011313003) 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, 265000 + ... + 303722.

It is an arithmetic number, because the mean of its divisors is an integer number (572495616).

Almost surely, 2^11011311003 is an apocalyptic number.

11011311003 is a deficient number, since it is larger than the sum of its proper divisors (7308548709).

11011311003 is a wasteful number, since it uses less digits than its factorization.

11011311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39975.

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

Adding to 11011311003 its reverse (30011311011), we get a palindrome (41022622014).

The spelling of 11011311003 in words is "eleven billion, eleven million, three hundred eleven thousand, three".