113204205643 has 4 divisors (see below), whose sum is σ = 113209249888.
Its totient is φ = 113199161400.
The previous prime is 113204205641. The next prime is 113204205649. The reversal of 113204205643 is 346502402311.
Adding to 113204205643 its reverse (346502402311), we get a palindrome (459706607954).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 113204205643 - 21 = 113204205641 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (113204205641) 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, 2488308 + ... + 2533393.
It is an arithmetic number, because the mean of its divisors is an integer number (28302312472).
Almost surely, 2113204205643 is an apocalyptic number.
113204205643 is a deficient number, since it is larger than the sum of its proper divisors (5044245).
113204205643 is an equidigital number, since it uses as much as digits as its factorization.
113204205643 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5044244.
The product of its (nonzero) digits is 17280, while the sum is 31.
The spelling of 113204205643 in words is "one hundred thirteen billion, two hundred four million, two hundred five thousand, six hundred forty-three".