203434535133 has 12 divisors (see below), whose sum is σ = 294721846588. Its totient is φ = 135220579200.

The previous prime is 203434535113. The next prime is 203434535177. The reversal of 203434535133 is 331535434302.

203434535133 is a `hidden beast` number, since 203 + 434 + 5 + 3 + 5 + 13 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 96729086169 + 106705448964 = 311013^2 + 326658^2 .

It is not a de Polignac number, because 203434535133 - 2⁹ = 203434534621 is a prime.

It is a super-2 number, since 2×203434535133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203434535113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33533818 + ... + 33539883.

Almost surely, 2^203434535133 is an apocalyptic number.

It is an amenable number.

203434535133 is a deficient number, since it is larger than the sum of its proper divisors (91287311455).

203434535133 is a wasteful number, since it uses less digits than its factorization.

203434535133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67074044 (or 67074041 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 36.

Adding to 203434535133 its reverse (331535434302), we get a palindrome (534969969435).

The spelling of 203434535133 in words is "two hundred three billion, four hundred thirty-four million, five hundred thirty-five thousand, one hundred thirty-three".