113105403 has 20 divisors (see below), whose sum is σ = 178900920. Its totient is φ = 70967232.

The previous prime is 113105401. The next prime is 113105417. The reversal of 113105403 is 304501311.

113105403 is a `hidden beast` number, since 113 + 10 + 540 + 3 = 666.

It is not a de Polignac number, because 113105403 - 2¹ = 113105401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113105401) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39693 + ... + 42446.

It is an arithmetic number, because the mean of its divisors is an integer number (8945046).

Almost surely, 2^113105403 is an apocalyptic number.

113105403 is a deficient number, since it is larger than the sum of its proper divisors (65795517).

113105403 is an equidigital number, since it uses as much as digits as its factorization.

113105403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82168 (or 82159 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 113105403 is about 10635.1023972503. The cubic root of 113105403 is about 483.6090846091.

Adding to 113105403 its reverse (304501311), we get a palindrome (417606714).

The spelling of 113105403 in words is "one hundred thirteen million, one hundred five thousand, four hundred three".