203013112133 has 4 divisors (see below), whose sum is σ = 218629505388. Its totient is φ = 187396718880.

The previous prime is 203013112121. The next prime is 203013112151. The reversal of 203013112133 is 331211310302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113553498529 + 89459613604 = 336977^2 + 299098^2 .

It is a cyclic number.

It is not a de Polignac number, because 203013112133 - 2⁴ = 203013112117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203013112163) 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, 7808196608 + ... + 7808196633.

It is an arithmetic number, because the mean of its divisors is an integer number (54657376347).

Almost surely, 2^203013112133 is an apocalyptic number.

It is an amenable number.

203013112133 is a deficient number, since it is larger than the sum of its proper divisors (15616393255).

203013112133 is a wasteful number, since it uses less digits than its factorization.

203013112133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15616393254.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 203013112133 its reverse (331211310302), we get a palindrome (534224422435).

The spelling of 203013112133 in words is "two hundred three billion, thirteen million, one hundred twelve thousand, one hundred thirty-three".