203100133009 has 4 divisors (see below), whose sum is σ = 204463221300. Its totient is φ = 201737044720.

The previous prime is 203100133003. The next prime is 203100133013. The reversal of 203100133009 is 900331001302.

203100133009 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 an emirpimes, since its reverse is a distinct semiprime: 900331001302 = 2 ⋅450165500651.

It can be written as a sum of positive squares in 2 ways, for example, as 50631750225 + 152468382784 = 225015^2 + 390472^2 .

It is a cyclic number.

It is not a de Polignac number, because 203100133009 - 2⁹ = 203100132497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203100133003) 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, 681543922 + ... + 681544219.

It is an arithmetic number, because the mean of its divisors is an integer number (51115805325).

Almost surely, 2^203100133009 is an apocalyptic number.

It is an amenable number.

203100133009 is a deficient number, since it is larger than the sum of its proper divisors (1363088291).

203100133009 is a wasteful number, since it uses less digits than its factorization.

203100133009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363088290.

The product of its (nonzero) digits is 486, while the sum is 22.

The spelling of 203100133009 in words is "two hundred three billion, one hundred million, one hundred thirty-three thousand, nine".