203206113 has 12 divisors (see below), whose sum is σ = 320203728. Its totient is φ = 123155160.

The previous prime is 203206111. The next prime is 203206153. The reversal of 203206113 is 311602302.

203206113 is a `hidden beast` number, since 20 + 32 + 0 + 611 + 3 = 666.

203206113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203206113 - 2¹ = 203206111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203206111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1026195 + ... + 1026392.

It is an arithmetic number, because the mean of its divisors is an integer number (26683644).

Almost surely, 2^203206113 is an apocalyptic number.

It is an amenable number.

203206113 is a deficient number, since it is larger than the sum of its proper divisors (116997615).

203206113 is a wasteful number, since it uses less digits than its factorization.

203206113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052604 (or 2052601 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 203206113 is about 14255.0381619973. The cubic root of 203206113 is about 587.9119071832.

Adding to 203206113 its reverse (311602302), we get a palindrome (514808415).

The spelling of 203206113 in words is "two hundred three million, two hundred six thousand, one hundred thirteen".