203525244161 has 2 divisors, whose sum is σ = 203525244162. Its totient is φ = 203525244160.

The previous prime is 203525244151. The next prime is 203525244217. The reversal of 203525244161 is 161442525302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170006957761 + 33518286400 = 412319^2 + 183080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203525244161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (203525244151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101762622080 + 101762622081.

It is an arithmetic number, because the mean of its divisors is an integer number (101762622081).

Almost surely, 2^203525244161 is an apocalyptic number.

It is an amenable number.

203525244161 is a deficient number, since it is larger than the sum of its proper divisors (1).

203525244161 is an equidigital number, since it uses as much as digits as its factorization.

203525244161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 203525244161 its reverse (161442525302), we get a palindrome (364967769463).

The spelling of 203525244161 in words is "two hundred three billion, five hundred twenty-five million, two hundred forty-four thousand, one hundred sixty-one".