113803 has 4 divisors (see below), whose sum is σ = 114480. Its totient is φ = 113128.

The previous prime is 113797. The next prime is 113809. The reversal of 113803 is 308311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (113797) and next prime (113809).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113803 is a prime.

It is a super-2 number, since 2×113803² = 25902245618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (113809) 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, 138 + ... + 496.

It is an arithmetic number, because the mean of its divisors is an integer number (28620).

2¹¹³⁸⁰³ is an apocalyptic number.

113803 is a deficient number, since it is larger than the sum of its proper divisors (677).

113803 is an equidigital number, since it uses as much as digits as its factorization.

113803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 113803 is about 337.3470023581. The cubic root of 113803 is about 48.4601294885.

The spelling of 113803 in words is "one hundred thirteen thousand, eight hundred three".