231606203 has 12 divisors (see below), whose sum is σ = 239236920. Its totient is φ = 224167680.

The previous prime is 231606169. The next prime is 231606233. The reversal of 231606203 is 302606132.

It is not a de Polignac number, because 231606203 - 2⁸ = 231605947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231606233) 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, 248843 + ... + 249771.

It is an arithmetic number, because the mean of its divisors is an integer number (19936410).

Almost surely, 2^231606203 is an apocalyptic number.

231606203 is a deficient number, since it is larger than the sum of its proper divisors (7630717).

231606203 is an frugal number, since it uses more digits than its factorization.

231606203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 231606203 is about 15218.6137016484. The cubic root of 231606203 is about 614.1155046948.

The spelling of 231606203 in words is "two hundred thirty-one million, six hundred six thousand, two hundred three".