115311103 has 4 divisors (see below), whose sum is σ = 119030848. Its totient is φ = 111591360.

The previous prime is 115311089. The next prime is 115311109. The reversal of 115311103 is 301113511.

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-115311103 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115311109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859826 + ... + 1859887.

It is an arithmetic number, because the mean of its divisors is an integer number (29757712).

Almost surely, 2^115311103 is an apocalyptic number.

115311103 is a deficient number, since it is larger than the sum of its proper divisors (3719745).

115311103 is an equidigital number, since it uses as much as digits as its factorization.

115311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719744.

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

The square root of 115311103 is about 10738.3007501187. The cubic root of 115311103 is about 486.7325332026.

Adding to 115311103 its reverse (301113511), we get a palindrome (416424614).

The spelling of 115311103 in words is "one hundred fifteen million, three hundred eleven thousand, one hundred three".