210213320310061 has 2 divisors, whose sum is σ = 210213320310062. Its totient is φ = 210213320310060.

The previous prime is 210213320309999. The next prime is 210213320310067. The reversal of 210213320310061 is 160013023312012.

It is a happy number.

210213320310061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176166025290025 + 34047295020036 = 13272755^2 + 5835006^2 .

It is a cyclic number.

It is not a de Polignac number, because 210213320310061 - 2⁹ = 210213320309549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210213320310067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106660155030 + 105106660155031.

It is an arithmetic number, because the mean of its divisors is an integer number (105106660155031).

Almost surely, 2^{210213320310061} is an apocalyptic number.

It is an amenable number.

210213320310061 is a deficient number, since it is larger than the sum of its proper divisors (1).

210213320310061 is an equidigital number, since it uses as much as digits as its factorization.

210213320310061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 210213320310061 its reverse (160013023312012), we get a palindrome (370226343622073).

The spelling of 210213320310061 in words is "two hundred ten trillion, two hundred thirteen billion, three hundred twenty million, three hundred ten thousand, sixty-one".