11003013011 has 4 divisors (see below), whose sum is σ = 11271379224. Its totient is φ = 10734646800.

The previous prime is 11003013001. The next prime is 11003013017. The reversal of 11003013011 is 11031030011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11031030011 = 373 ⋅29573807.

It is a cyclic number.

It is not a de Polignac number, because 11003013011 - 2⁶ = 11003012947 is a prime.

It is a super-2 number, since 2×11003013011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11003012983 and 11003013001.

It is not an unprimeable number, because it can be changed into a prime (11003013017) 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 3 ways as a sum of consecutive naturals, for example, 134183045 + ... + 134183126.

It is an arithmetic number, because the mean of its divisors is an integer number (2817844806).

Almost surely, 2^11003013011 is an apocalyptic number.

11003013011 is a deficient number, since it is larger than the sum of its proper divisors (268366213).

11003013011 is an equidigital number, since it uses as much as digits as its factorization.

11003013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268366212.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 11003013011 its reverse (11031030011), we get a palindrome (22034043022).

The spelling of 11003013011 in words is "eleven billion, three million, thirteen thousand, eleven".