203212113313 has 12 divisors (see below), whose sum is σ = 227151242640. Its totient is φ = 181607121080.

The previous prime is 203212113271. The next prime is 203212113331. The reversal of 203212113313 is 313311212302.

It is not a de Polignac number, because 203212113313 - 2¹³ = 203212105121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203212113113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14225395 + ... + 14239672.

It is an arithmetic number, because the mean of its divisors is an integer number (18929270220).

Almost surely, 2^203212113313 is an apocalyptic number.

It is an amenable number.

203212113313 is a deficient number, since it is larger than the sum of its proper divisors (23939129327).

203212113313 is a wasteful number, since it uses less digits than its factorization.

203212113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28465148 (or 28465137 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203212113313 its reverse (313311212302), we get a palindrome (516523325615).

The spelling of 203212113313 in words is "two hundred three billion, two hundred twelve million, one hundred thirteen thousand, three hundred thirteen".