201012131326021 has 2 divisors, whose sum is σ = 201012131326022. Its totient is φ = 201012131326020.

The previous prime is 201012131326007. The next prime is 201012131326051. The reversal of 201012131326021 is 120623131210102.

201012131326021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134582296123521 + 66429835202500 = 11600961^2 + 8150450^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012131326021 - 2¹⁹ = 201012130801733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012131326001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506065663010 + 100506065663011.

It is an arithmetic number, because the mean of its divisors is an integer number (100506065663011).

Almost surely, 2^{201012131326021} is an apocalyptic number.

It is an amenable number.

201012131326021 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012131326021 is an equidigital number, since it uses as much as digits as its factorization.

201012131326021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 201012131326021 its reverse (120623131210102), we get a palindrome (321635262536123).

The spelling of 201012131326021 in words is "two hundred one trillion, twelve billion, one hundred thirty-one million, three hundred twenty-six thousand, twenty-one".