111123220303 has 4 divisors (see below), whose sum is σ = 115954664688. Its totient is φ = 106291775920.

The previous prime is 111123220297. The next prime is 111123220343. The reversal of 111123220303 is 303022321111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111123220303 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 (111123220343) 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, 2415722158 + ... + 2415722203.

It is an arithmetic number, because the mean of its divisors is an integer number (28988666172).

Almost surely, 2^111123220303 is an apocalyptic number.

111123220303 is a deficient number, since it is larger than the sum of its proper divisors (4831444385).

111123220303 is an equidigital number, since it uses as much as digits as its factorization.

111123220303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831444384.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111123220303 its reverse (303022321111), we get a palindrome (414145541414).

The spelling of 111123220303 in words is "one hundred eleven billion, one hundred twenty-three million, two hundred twenty thousand, three hundred three".