231504550201 has 2 divisors, whose sum is σ = 231504550202. Its totient is φ = 231504550200.

The previous prime is 231504550181. The next prime is 231504550237. The reversal of 231504550201 is 102055405132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135995738176 + 95508812025 = 368776^2 + 309045^2 .

It is a cyclic number.

It is not a de Polignac number, because 231504550201 - 2³⁵ = 197144811833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231504550201.

It is not a weakly prime, because it can be changed into another prime (231504550301) 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 as a sum of consecutive naturals, namely, 115752275100 + 115752275101.

It is an arithmetic number, because the mean of its divisors is an integer number (115752275101).

Almost surely, 2^231504550201 is an apocalyptic number.

It is an amenable number.

231504550201 is a deficient number, since it is larger than the sum of its proper divisors (1).

231504550201 is an equidigital number, since it uses as much as digits as its factorization.

231504550201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 231504550201 its reverse (102055405132), we get a palindrome (333559955333).

The spelling of 231504550201 in words is "two hundred thirty-one billion, five hundred four million, five hundred fifty thousand, two hundred one".