203142435459 has 32 divisors (see below), whose sum is σ = 297333872640. Its totient is φ = 122811379200.

The previous prime is 203142435449. The next prime is 203142435539. The reversal of 203142435459 is 954534241302.

203142435459 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 203142435459 - 2⁸ = 203142435203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203142435459.

It is not an unprimeable number, because it can be changed into a prime (203142435449) 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 31 ways as a sum of consecutive naturals, for example, 81504 + ... + 642594.

It is an arithmetic number, because the mean of its divisors is an integer number (9291683520).

Almost surely, 2^203142435459 is an apocalyptic number.

203142435459 is a deficient number, since it is larger than the sum of its proper divisors (94191437181).

203142435459 is a wasteful number, since it uses less digits than its factorization.

203142435459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561371.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 203142435459 in words is "two hundred three billion, one hundred forty-two million, four hundred thirty-five thousand, four hundred fifty-nine".