201230211001 has 2 divisors, whose sum is σ = 201230211002. Its totient is φ = 201230211000.

The previous prime is 201230210989. The next prime is 201230211043. The reversal of 201230211001 is 100112032102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176463005625 + 24767205376 = 420075^2 + 157376^2 .

It is a cyclic number.

It is not a de Polignac number, because 201230211001 - 2²³ = 201221822393 is a prime.

It is not a weakly prime, because it can be changed into another prime (201230211101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615105500 + 100615105501.

It is an arithmetic number, because the mean of its divisors is an integer number (100615105501).

Almost surely, 2^201230211001 is an apocalyptic number.

It is an amenable number.

201230211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201230211001 is an equidigital number, since it uses as much as digits as its factorization.

201230211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201230211001 its reverse (100112032102), we get a palindrome (301342243103).

The spelling of 201230211001 in words is "two hundred one billion, two hundred thirty million, two hundred eleven thousand, one".