113540203 has 16 divisors (see below), whose sum is σ = 135244800. Its totient is φ = 95236008.

The previous prime is 113540183. The next prime is 113540209. The reversal of 113540203 is 302045311.

It is not a de Polignac number, because 113540203 - 2⁵ = 113540171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113540209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12600 + ... + 19642.

It is an arithmetic number, because the mean of its divisors is an integer number (8452800).

Almost surely, 2^113540203 is an apocalyptic number.

113540203 is a deficient number, since it is larger than the sum of its proper divisors (21704597).

113540203 is an frugal number, since it uses more digits than its factorization.

113540203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111 (or 7097 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 113540203 is about 10655.5245295574. The cubic root of 113540203 is about 484.2279892006.

Adding to 113540203 its reverse (302045311), we get a palindrome (415585514).

The spelling of 113540203 in words is "one hundred thirteen million, five hundred forty thousand, two hundred three".