113613203 has 4 divisors (see below), whose sum is σ = 123941688. Its totient is φ = 103284720.

The previous prime is 113613197. The next prime is 113613211. The reversal of 113613203 is 302316311.

It is a happy number.

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

It is not a de Polignac number, because 113613203 - 2⁴ = 113613187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112613203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5164226 + ... + 5164247.

It is an arithmetic number, because the mean of its divisors is an integer number (30985422).

Almost surely, 2^113613203 is an apocalyptic number.

113613203 is a deficient number, since it is larger than the sum of its proper divisors (10328485).

113613203 is a wasteful number, since it uses less digits than its factorization.

113613203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10328484.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 113613203 is about 10658.9494322846. The cubic root of 113613203 is about 484.3317441386.

Adding to 113613203 its reverse (302316311), we get a palindrome (415929514).

It can be divided in two parts, 113 and 613203, that added together give a palindrome (613316).

The spelling of 113613203 in words is "one hundred thirteen million, six hundred thirteen thousand, two hundred three".