210012321317 has 2 divisors, whose sum is σ = 210012321318. Its totient is φ = 210012321316.

The previous prime is 210012321283. The next prime is 210012321331. The reversal of 210012321317 is 713123210012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151851281761 + 58161039556 = 389681^2 + 241166^2 .

It is a cyclic number.

It is not a de Polignac number, because 210012321317 - 2⁸ = 210012321061 is a prime.

It is a super-2 number, since 2×210012321317² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210012321292 and 210012321301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210012321397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105006160658 + 105006160659.

It is an arithmetic number, because the mean of its divisors is an integer number (105006160659).

Almost surely, 2^210012321317 is an apocalyptic number.

It is an amenable number.

210012321317 is a deficient number, since it is larger than the sum of its proper divisors (1).

210012321317 is an equidigital number, since it uses as much as digits as its factorization.

210012321317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 210012321317 its reverse (713123210012), we get a palindrome (923135531329).

The spelling of 210012321317 in words is "two hundred ten billion, twelve million, three hundred twenty-one thousand, three hundred seventeen".