11103323311 has 4 divisors (see below), whose sum is σ = 11111411592. Its totient is φ = 11095235032.

The previous prime is 11103323279. The next prime is 11103323333. The reversal of 11103323311 is 11332330111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11332330111 = 19801 ⋅572311.

It is a cyclic number.

It is not a de Polignac number, because 11103323311 - 2⁵ = 11103323279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103323111) 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, 4042081 + ... + 4044826.

It is an arithmetic number, because the mean of its divisors is an integer number (2777852898).

Almost surely, 2^11103323311 is an apocalyptic number.

11103323311 is a deficient number, since it is larger than the sum of its proper divisors (8088281).

11103323311 is an equidigital number, since it uses as much as digits as its factorization.

11103323311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088280.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11103323311 its reverse (11332330111), we get a palindrome (22435653422).

The spelling of 11103323311 in words is "eleven billion, one hundred three million, three hundred twenty-three thousand, three hundred eleven".