11013121303 has 4 divisors (see below), whose sum is σ = 11491952688. Its totient is φ = 10534289920.

The previous prime is 11013121241. The next prime is 11013121337. The reversal of 11013121303 is 30312131011.

11013121303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30312131011 = 113 ⋅268248947.

It is a cyclic number.

It is not a de Polignac number, because 11013121303 - 2¹⁷ = 11012990231 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 (11013101303) 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 3 ways as a sum of consecutive naturals, for example, 239415658 + ... + 239415703.

It is an arithmetic number, because the mean of its divisors is an integer number (2872988172).

Almost surely, 2^11013121303 is an apocalyptic number.

11013121303 is a deficient number, since it is larger than the sum of its proper divisors (478831385).

11013121303 is an equidigital number, since it uses as much as digits as its factorization.

11013121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478831384.

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

Adding to 11013121303 its reverse (30312131011), we get a palindrome (41325252314).

The spelling of 11013121303 in words is "eleven billion, thirteen million, one hundred twenty-one thousand, three hundred three".