231221140330203 has 12 divisors (see below), whose sum is σ = 345502853367360. Its totient is φ = 148831998373296.

The previous prime is 231221140330199. The next prime is 231221140330253. The reversal of 231221140330203 is 302033041122132.

231221140330203 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 21 + 1 + 403 + 30 + 203 = 666.

It is not a de Polignac number, because 231221140330203 - 2² = 231221140330199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231221140330253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442952375851 + ... + 442952376372.

It is an arithmetic number, because the mean of its divisors is an integer number (28791904447280).

Almost surely, 2^{231221140330203} is an apocalyptic number.

231221140330203 is a deficient number, since it is larger than the sum of its proper divisors (114281713037157).

231221140330203 is a wasteful number, since it uses less digits than its factorization.

231221140330203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885904752258 (or 885904752255 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 231221140330203 its reverse (302033041122132), we get a palindrome (533254181452335).

The spelling of 231221140330203 in words is "two hundred thirty-one trillion, two hundred twenty-one billion, one hundred forty million, three hundred thirty thousand, two hundred three".