201023132212009 has 2 divisors, whose sum is σ = 201023132212010. Its totient is φ = 201023132212008.

The previous prime is 201023132211961. The next prime is 201023132212027. The reversal of 201023132212009 is 900212231320102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173370626352784 + 27652505859225 = 13167028^2 + 5258565^2 .

It is a cyclic number.

It is not a de Polignac number, because 201023132212009 - 2¹¹ = 201023132209961 is a prime.

It is not a weakly prime, because it can be changed into another prime (201023132212069) 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, 100511566106004 + 100511566106005.

It is an arithmetic number, because the mean of its divisors is an integer number (100511566106005).

Almost surely, 2^{201023132212009} is an apocalyptic number.

It is an amenable number.

201023132212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

201023132212009 is an equidigital number, since it uses as much as digits as its factorization.

201023132212009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 201023132212009 in words is "two hundred one trillion, twenty-three billion, one hundred thirty-two million, two hundred twelve thousand, nine".