231003320201 has 4 divisors (see below), whose sum is σ = 231741350292. Its totient is φ = 230265290112.

The previous prime is 231003320159. The next prime is 231003320209. The reversal of 231003320201 is 102023300132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32710339600 + 198292980601 = 180860^2 + 445301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231003320201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231003320201.

It is not an unprimeable number, because it can be changed into a prime (231003320209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369014576 + ... + 369015201.

It is an arithmetic number, because the mean of its divisors is an integer number (57935337573).

Almost surely, 2^231003320201 is an apocalyptic number.

It is an amenable number.

231003320201 is a deficient number, since it is larger than the sum of its proper divisors (738030091).

231003320201 is an equidigital number, since it uses as much as digits as its factorization.

231003320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738030090.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 231003320201 its reverse (102023300132), we get a palindrome (333026620333).

The spelling of 231003320201 in words is "two hundred thirty-one billion, three million, three hundred twenty thousand, two hundred one".