201044212693 has 2 divisors, whose sum is σ = 201044212694. Its totient is φ = 201044212692.

The previous prime is 201044212679. The next prime is 201044212729. The reversal of 201044212693 is 396212440102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166008983364 + 35035229329 = 407442^2 + 187177^2 .

It is a cyclic number.

It is not a de Polignac number, because 201044212693 - 2⁹ = 201044212181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201044212093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100522106346 + 100522106347.

It is an arithmetic number, because the mean of its divisors is an integer number (100522106347).

Almost surely, 2^201044212693 is an apocalyptic number.

It is an amenable number.

201044212693 is a deficient number, since it is larger than the sum of its proper divisors (1).

201044212693 is an equidigital number, since it uses as much as digits as its factorization.

201044212693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 201044212693 its reverse (396212440102), we get a palindrome (597256652795).

The spelling of 201044212693 in words is "two hundred one billion, forty-four million, two hundred twelve thousand, six hundred ninety-three".