11011221033103 has 4 divisors (see below), whose sum is σ = 11011241186568. Its totient is φ = 11011200879640.

The previous prime is 11011221033089. The next prime is 11011221033157. The reversal of 11011221033103 is 30133012211011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11011221033103 - 2²⁵ = 11011187478671 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 (11011221033403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9233668 + ... + 10357753.

It is an arithmetic number, because the mean of its divisors is an integer number (2752810296642).

Almost surely, 2^{11011221033103} is an apocalyptic number.

11011221033103 is a deficient number, since it is larger than the sum of its proper divisors (20153465).

11011221033103 is an equidigital number, since it uses as much as digits as its factorization.

11011221033103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20153464.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 11011221033103 its reverse (30133012211011), we get a palindrome (41144233244114).

The spelling of 11011221033103 in words is "eleven trillion, eleven billion, two hundred twenty-one million, thirty-three thousand, one hundred three".