201213201031001 has 2 divisors, whose sum is σ = 201213201031002. Its totient is φ = 201213201031000.

The previous prime is 201213201030973. The next prime is 201213201031027. The reversal of 201213201031001 is 100130102312102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189741946849225 + 11471254181776 = 13774685^2 + 3386924^2 .

It is a cyclic number.

It is not a de Polignac number, because 201213201031001 - 2⁴⁶ = 130844456853337 is a prime.

It is not a weakly prime, because it can be changed into another prime (201213201033001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606600515500 + 100606600515501.

It is an arithmetic number, because the mean of its divisors is an integer number (100606600515501).

Almost surely, 2^{201213201031001} is an apocalyptic number.

It is an amenable number.

201213201031001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201213201031001 is an equidigital number, since it uses as much as digits as its factorization.

201213201031001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201213201031001 its reverse (100130102312102), we get a palindrome (301343303343103).

The spelling of 201213201031001 in words is "two hundred one trillion, two hundred thirteen billion, two hundred one million, thirty-one thousand, one".