203011122313 has 4 divisors (see below), whose sum is σ = 207732311248. Its totient is φ = 198289933380.

The previous prime is 203011122299. The next prime is 203011122323. The reversal of 203011122313 is 313221110302.

203011122313 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203011122313 - 2⁹ = 203011121801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203011122323) 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, 2360594403 + ... + 2360594488.

It is an arithmetic number, because the mean of its divisors is an integer number (51933077812).

Almost surely, 2^203011122313 is an apocalyptic number.

It is an amenable number.

203011122313 is a deficient number, since it is larger than the sum of its proper divisors (4721188935).

203011122313 is an equidigital number, since it uses as much as digits as its factorization.

203011122313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721188934.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 203011122313 its reverse (313221110302), we get a palindrome (516232232615).

The spelling of 203011122313 in words is "two hundred three billion, eleven million, one hundred twenty-two thousand, three hundred thirteen".