201131230203 has 12 divisors (see below), whose sum is σ = 290760453360. Its totient is φ = 133977841296.

The previous prime is 201131230193. The next prime is 201131230211. The reversal of 201131230203 is 302032131102.

201131230203 is a `hidden beast` number, since 201 + 1 + 31 + 230 + 203 = 666.

It is not a de Polignac number, because 201131230203 - 2³⁷ = 63692276731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201131230303) 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, 9125508 + ... + 9147521.

It is an arithmetic number, because the mean of its divisors is an integer number (24230037780).

Almost surely, 2^201131230203 is an apocalyptic number.

201131230203 is a deficient number, since it is larger than the sum of its proper divisors (89629223157).

201131230203 is a wasteful number, since it uses less digits than its factorization.

201131230203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18274258 (or 18274255 counting only the distinct ones).

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

Adding to 201131230203 its reverse (302032131102), we get a palindrome (503163361305).

The spelling of 201131230203 in words is "two hundred one billion, one hundred thirty-one million, two hundred thirty thousand, two hundred three".