11003311123 has 16 divisors (see below), whose sum is σ = 12767279616. Its totient is φ = 9287671680.

The previous prime is 11003311061. The next prime is 11003311129. The reversal of 11003311123 is 32111330011.

11003311123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11003311123 - 2²⁵ = 10969756691 is a prime.

It is a super-2 number, since 2×11003311123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11003311097 and 11003311106.

It is not an unprimeable number, because it can be changed into a prime (11003311129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426315 + ... + 451387.

It is an arithmetic number, because the mean of its divisors is an integer number (797954976).

Almost surely, 2^11003311123 is an apocalyptic number.

11003311123 is a deficient number, since it is larger than the sum of its proper divisors (1763968493).

11003311123 is an equidigital number, since it uses as much as digits as its factorization.

11003311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26034.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11003311123 its reverse (32111330011), we get a palindrome (43114641134).

The spelling of 11003311123 in words is "eleven billion, three million, three hundred eleven thousand, one hundred twenty-three".