11112308503 has 4 divisors (see below), whose sum is σ = 11124837360. Its totient is φ = 11099779648.

The previous prime is 11112308483. The next prime is 11112308509. The reversal of 11112308503 is 30580321111.

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 11112308503 - 2⁹ = 11112307991 is a prime.

It is a super-2 number, since 2×11112308503² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112308509) 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, 6263098 + ... + 6264871.

It is an arithmetic number, because the mean of its divisors is an integer number (2781209340).

Almost surely, 2^11112308503 is an apocalyptic number.

11112308503 is a deficient number, since it is larger than the sum of its proper divisors (12528857).

11112308503 is an equidigital number, since it uses as much as digits as its factorization.

11112308503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12528856.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 11112308503 its reverse (30580321111), we get a palindrome (41692629614).

The spelling of 11112308503 in words is "eleven billion, one hundred twelve million, three hundred eight thousand, five hundred three".