11121010303 has 4 divisors (see below), whose sum is σ = 11976472648. Its totient is φ = 10265547960.

The previous prime is 11121010279. The next prime is 11121010319. The reversal of 11121010303 is 30301012111.

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 11121010303 - 2¹³ = 11121002111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 855462331 = 11121010303 / (1 + 1 + 1 + 2 + 1 + 0 + 1 + 0 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121010333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427731153 + ... + 427731178.

It is an arithmetic number, because the mean of its divisors is an integer number (2994118162).

Almost surely, 2^11121010303 is an apocalyptic number.

11121010303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11121010303 is a deficient number, since it is larger than the sum of its proper divisors (855462345).

11121010303 is an equidigital number, since it uses as much as digits as its factorization.

11121010303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855462344.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11121010303 its reverse (30301012111), we get a palindrome (41422022414).

The spelling of 11121010303 in words is "eleven billion, one hundred twenty-one million, ten thousand, three hundred three".