1113345503 has 4 divisors (see below), whose sum is σ = 1143435960. Its totient is φ = 1083255048.

The previous prime is 1113345469. The next prime is 1113345553. The reversal of 1113345503 is 3055433111.

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-1113345503 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 (1113345553) 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, 15045173 + ... + 15045246.

It is an arithmetic number, because the mean of its divisors is an integer number (285858990).

Almost surely, 2^1113345503 is an apocalyptic number.

1113345503 is a deficient number, since it is larger than the sum of its proper divisors (30090457).

1113345503 is an equidigital number, since it uses as much as digits as its factorization.

1113345503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30090456.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1113345503 is about 33366.8323788759. The cubic root of 1113345503 is about 1036.4379812949.

Adding to 1113345503 its reverse (3055433111), we get a palindrome (4168778614).

The spelling of 1113345503 in words is "one billion, one hundred thirteen million, three hundred forty-five thousand, five hundred three".