113125503 has 4 divisors (see below), whose sum is σ = 150834008. Its totient is φ = 75417000.

The previous prime is 113125501. The next prime is 113125511. The reversal of 113125503 is 305521311.

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

It is not a de Polignac number, because 113125503 - 2¹ = 113125501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113125503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113125501) 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, 18854248 + ... + 18854253.

It is an arithmetic number, because the mean of its divisors is an integer number (37708502).

Almost surely, 2^113125503 is an apocalyptic number.

113125503 is a deficient number, since it is larger than the sum of its proper divisors (37708505).

113125503 is an equidigital number, since it uses as much as digits as its factorization.

113125503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37708504.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 113125503 is about 10636.0473391199. The cubic root of 113125503 is about 483.6377303578.

Adding to 113125503 its reverse (305521311), we get a palindrome (418646814).

The spelling of 113125503 in words is "one hundred thirteen million, one hundred twenty-five thousand, five hundred three".