203133120313 has 4 divisors (see below), whose sum is σ = 205144339428. Its totient is φ = 201121901200.

The previous prime is 203133120257. The next prime is 203133120361. The reversal of 203133120313 is 313021331302.

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 157348675584 + 45784444729 = 396672^2 + 213973^2 .

It is a cyclic number.

It is not a de Polignac number, because 203133120313 - 2¹³ = 203133112121 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203133120013) 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, 1005609406 + ... + 1005609607.

It is an arithmetic number, because the mean of its divisors is an integer number (51286084857).

Almost surely, 2^203133120313 is an apocalyptic number.

It is an amenable number.

203133120313 is a deficient number, since it is larger than the sum of its proper divisors (2011219115).

203133120313 is a wasteful number, since it uses less digits than its factorization.

203133120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011219114.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 203133120313 its reverse (313021331302), we get a palindrome (516154451615).

The spelling of 203133120313 in words is "two hundred three billion, one hundred thirty-three million, one hundred twenty thousand, three hundred thirteen".