213101200201261 has 2 divisors, whose sum is σ = 213101200201262. Its totient is φ = 213101200201260.

The previous prime is 213101200201217. The next prime is 213101200201289. The reversal of 213101200201261 is 162102002101312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152915334419236 + 60185865782025 = 12365894^2 + 7757955^2 .

It is a cyclic number.

It is not a de Polignac number, because 213101200201261 - 2¹³ = 213101200193069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213101200207261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106550600100630 + 106550600100631.

It is an arithmetic number, because the mean of its divisors is an integer number (106550600100631).

Almost surely, 2^{213101200201261} is an apocalyptic number.

It is an amenable number.

213101200201261 is a deficient number, since it is larger than the sum of its proper divisors (1).

213101200201261 is an equidigital number, since it uses as much as digits as its factorization.

213101200201261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 213101200201261 its reverse (162102002101312), we get a palindrome (375203202302573).

The spelling of 213101200201261 in words is "two hundred thirteen trillion, one hundred one billion, two hundred million, two hundred one thousand, two hundred sixty-one".