13210201000261 has 2 divisors, whose sum is σ = 13210201000262. Its totient is φ = 13210201000260.

The previous prime is 13210201000237. The next prime is 13210201000273. The reversal of 13210201000261 is 16200010201231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11529379504036 + 1680821496225 = 3395494^2 + 1296465^2 .

It is a cyclic number.

It is not a de Polignac number, because 13210201000261 - 2¹³ = 13210200992069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13210201000291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605100500130 + 6605100500131.

It is an arithmetic number, because the mean of its divisors is an integer number (6605100500131).

Almost surely, 2^{13210201000261} is an apocalyptic number.

It is an amenable number.

13210201000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210201000261 is an equidigital number, since it uses as much as digits as its factorization.

13210201000261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13210201000261 its reverse (16200010201231), we get a palindrome (29410211201492).

The spelling of 13210201000261 in words is "thirteen trillion, two hundred ten billion, two hundred one million, two hundred sixty-one", and thus it is an aban number.