113203105 has 8 divisors (see below), whose sum is σ = 137370600. Its totient is φ = 89544576.

The previous prime is 113203099. The next prime is 113203109. The reversal of 113203105 is 501302311.

It can be written as a sum of positive squares in 4 ways, for example, as 3519376 + 109683729 = 1876^2 + 10473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113203105 - 2⁵ = 113203073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113203109) 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 7 ways as a sum of consecutive naturals, for example, 126750 + ... + 127639.

It is an arithmetic number, because the mean of its divisors is an integer number (17171325).

Almost surely, 2^113203105 is an apocalyptic number.

It is an amenable number.

113203105 is a deficient number, since it is larger than the sum of its proper divisors (24167495).

113203105 is an equidigital number, since it uses as much as digits as its factorization.

113203105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254483.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 113203105 is about 10639.6947794568. The cubic root of 113203105 is about 483.7482939222.

Adding to 113203105 its reverse (501302311), we get a palindrome (614505416).

The spelling of 113203105 in words is "one hundred thirteen million, two hundred three thousand, one hundred five".