203040240535 has 16 divisors (see below), whose sum is σ = 277354575360. Its totient is φ = 141245383840.

The previous prime is 203040240509. The next prime is 203040240539. The reversal of 203040240535 is 535042040302.

203040240535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203040240535 - 2¹¹ = 203040238487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203040240539) 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 15 ways as a sum of consecutive naturals, for example, 80251795 + ... + 80254324.

It is an arithmetic number, because the mean of its divisors is an integer number (17334660960).

Almost surely, 2^203040240535 is an apocalyptic number.

203040240535 is a deficient number, since it is larger than the sum of its proper divisors (74314334825).

203040240535 is a wasteful number, since it uses less digits than its factorization.

203040240535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160506158.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 203040240535 its reverse (535042040302), we get a palindrome (738082280837).

The spelling of 203040240535 in words is "two hundred three billion, forty million, two hundred forty thousand, five hundred thirty-five".