231243650201 has 4 divisors (see below), whose sum is σ = 236621409552. Its totient is φ = 225865890852.

The previous prime is 231243650179. The next prime is 231243650221. The reversal of 231243650201 is 102056342132.

It is a happy number.

231243650201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231243650201 - 2⁶ = 231243650137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231243650221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2688879611 + ... + 2688879696.

It is an arithmetic number, because the mean of its divisors is an integer number (59155352388).

Almost surely, 2^231243650201 is an apocalyptic number.

It is an amenable number.

231243650201 is a deficient number, since it is larger than the sum of its proper divisors (5377759351).

231243650201 is an equidigital number, since it uses as much as digits as its factorization.

231243650201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377759350.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 231243650201 its reverse (102056342132), we get a palindrome (333299992333).

The spelling of 231243650201 in words is "two hundred thirty-one billion, two hundred forty-three million, six hundred fifty thousand, two hundred one".