201043240033 has 4 divisors (see below), whose sum is σ = 201044230660. Its totient is φ = 201042249408.

The previous prime is 201043240007. The next prime is 201043240061. The reversal of 201043240033 is 330042340102.

It is a happy number.

201043240033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 can be written as a sum of positive squares in 2 ways, for example, as 175098728704 + 25944511329 = 418448^2 + 161073^2 .

It is a cyclic number.

It is not a de Polignac number, because 201043240033 - 2¹³ = 201043231841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201043239986 and 201043240013.

It is not an unprimeable number, because it can be changed into a prime (201043247033) 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 3 ways as a sum of consecutive naturals, for example, 68028 + ... + 637741.

It is an arithmetic number, because the mean of its divisors is an integer number (50261057665).

Almost surely, 2^201043240033 is an apocalyptic number.

It is an amenable number.

201043240033 is a deficient number, since it is larger than the sum of its proper divisors (990627).

201043240033 is an equidigital number, since it uses as much as digits as its factorization.

201043240033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990626.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 201043240033 its reverse (330042340102), we get a palindrome (531085580135).

The spelling of 201043240033 in words is "two hundred one billion, forty-three million, two hundred forty thousand, thirty-three".