113203643 has 8 divisors (see below), whose sum is σ = 130233600. Its totient is φ = 96388200.

The previous prime is 113203633. The next prime is 113203681. The reversal of 113203643 is 346302311.

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 113203643 - 2¹⁴ = 113187259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113203633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52493 + ... + 54606.

It is an arithmetic number, because the mean of its divisors is an integer number (16279200).

Almost surely, 2^113203643 is an apocalyptic number.

113203643 is a deficient number, since it is larger than the sum of its proper divisors (17029957).

113203643 is a wasteful number, since it uses less digits than its factorization.

113203643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107257.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 113203643 is about 10639.7200621069. The cubic root of 113203643 is about 483.7490602621.

Adding to 113203643 its reverse (346302311), we get a palindrome (459505954).

The spelling of 113203643 in words is "one hundred thirteen million, two hundred three thousand, six hundred forty-three".