201020101111213 has 2 divisors, whose sum is σ = 201020101111214. Its totient is φ = 201020101111212.

The previous prime is 201020101111183. The next prime is 201020101111223. The reversal of 201020101111213 is 312111101020102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102812258771044 + 98207842340169 = 10139638^2 + 9909987^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020101111213 - 2⁴¹ = 198821077855661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020101111223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510050555606 + 100510050555607.

It is an arithmetic number, because the mean of its divisors is an integer number (100510050555607).

Almost surely, 2^{201020101111213} is an apocalyptic number.

It is an amenable number.

201020101111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020101111213 is an equidigital number, since it uses as much as digits as its factorization.

201020101111213 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 16.

Adding to 201020101111213 its reverse (312111101020102), we get a palindrome (513131202131315).

The spelling of 201020101111213 in words is "two hundred one trillion, twenty billion, one hundred one million, one hundred eleven thousand, two hundred thirteen".