203012221113 has 12 divisors (see below), whose sum is σ = 315796788580. Its totient is φ = 124930597536.

The previous prime is 203012221109. The next prime is 203012221121. The reversal of 203012221113 is 311122210302.

203012221113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 93459826944 + 109552394169 = 305712^2 + 330987^2 .

It is not a de Polignac number, because 203012221113 - 2² = 203012221109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203012221123) 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 11 ways as a sum of consecutive naturals, for example, 867573478 + ... + 867573711.

Almost surely, 2^203012221113 is an apocalyptic number.

It is an amenable number.

203012221113 is a deficient number, since it is larger than the sum of its proper divisors (112784567467).

203012221113 is a wasteful number, since it uses less digits than its factorization.

203012221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735147208 (or 1735147205 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203012221113 its reverse (311122210302), we get a palindrome (514134431415).

The spelling of 203012221113 in words is "two hundred three billion, twelve million, two hundred twenty-one thousand, one hundred thirteen".