201100033243 has 4 divisors (see below), whose sum is σ = 203173229560. Its totient is φ = 199026836928.

The previous prime is 201100033207. The next prime is 201100033273. The reversal of 201100033243 is 342330001102.

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 201100033243 - 2¹³ = 201100025051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201100033243.

It is not an unprimeable number, because it can be changed into a prime (201100033273) 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, 1036598013 + ... + 1036598206.

It is an arithmetic number, because the mean of its divisors is an integer number (50793307390).

Almost surely, 2^201100033243 is an apocalyptic number.

201100033243 is a deficient number, since it is larger than the sum of its proper divisors (2073196317).

201100033243 is an equidigital number, since it uses as much as digits as its factorization.

201100033243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073196316.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201100033243 its reverse (342330001102), we get a palindrome (543430034345).

The spelling of 201100033243 in words is "two hundred one billion, one hundred million, thirty-three thousand, two hundred forty-three".