201044230081 has 2 divisors, whose sum is σ = 201044230082. Its totient is φ = 201044230080.

The previous prime is 201044230039. The next prime is 201044230103. The reversal of 201044230081 is 180032440102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122069179456 + 78975050625 = 349384^2 + 281025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201044230081 is a prime.

It is a super-2 number, since 2×201044230081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201044230001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100522115040 + 100522115041.

It is an arithmetic number, because the mean of its divisors is an integer number (100522115041).

Almost surely, 2^201044230081 is an apocalyptic number.

It is an amenable number.

201044230081 is a deficient number, since it is larger than the sum of its proper divisors (1).

201044230081 is an equidigital number, since it uses as much as digits as its factorization.

201044230081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 201044230081 its reverse (180032440102), we get a palindrome (381076670183).

The spelling of 201044230081 in words is "two hundred one billion, forty-four million, two hundred thirty thousand, eighty-one".