111113503 has 2 divisors, whose sum is σ = 111113504. Its totient is φ = 111113502.

The previous prime is 111113489. The next prime is 111113507. The reversal of 111113503 is 305311111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111113503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111113507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556751 + 55556752.

It is an arithmetic number, because the mean of its divisors is an integer number (55556752).

Almost surely, 2^111113503 is an apocalyptic number.

111113503 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113503 is an equidigital number, since it uses as much as digits as its factorization.

111113503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 111113503 is about 10541.0389905360. The cubic root of 111113503 is about 480.7533064451.

Adding to 111113503 its reverse (305311111), we get a palindrome (416424614).

The spelling of 111113503 in words is "one hundred eleven million, one hundred thirteen thousand, five hundred three".