210051523117 has 2 divisors, whose sum is σ = 210051523118. Its totient is φ = 210051523116.

The previous prime is 210051523111. The next prime is 210051523153. The reversal of 210051523117 is 711325150012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169870919716 + 40180603401 = 412154^2 + 200451^2 .

It is a cyclic number.

It is not a de Polignac number, because 210051523117 - 2³ = 210051523109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210051523111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105025761558 + 105025761559.

It is an arithmetic number, because the mean of its divisors is an integer number (105025761559).

Almost surely, 2^210051523117 is an apocalyptic number.

It is an amenable number.

210051523117 is a deficient number, since it is larger than the sum of its proper divisors (1).

210051523117 is an equidigital number, since it uses as much as digits as its factorization.

210051523117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 28.

Adding to 210051523117 its reverse (711325150012), we get a palindrome (921376673129).

The spelling of 210051523117 in words is "two hundred ten billion, fifty-one million, five hundred twenty-three thousand, one hundred seventeen".