210213320309999 has 2 divisors, whose sum is σ = 210213320310000. Its totient is φ = 210213320309998.

The previous prime is 210213320309897. The next prime is 210213320310061. The reversal of 210213320309999 is 999903023312012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210213320309999 - 2²⁴ = 210213303532783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210213320309999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210213320509999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106660154999 + 105106660155000.

It is an arithmetic number, because the mean of its divisors is an integer number (105106660155000).

Almost surely, 2^{210213320309999} is an apocalyptic number.

210213320309999 is a deficient number, since it is larger than the sum of its proper divisors (1).

210213320309999 is an equidigital number, since it uses as much as digits as its factorization.

210213320309999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1417176, while the sum is 53.

The spelling of 210213320309999 in words is "two hundred ten trillion, two hundred thirteen billion, three hundred twenty million, three hundred nine thousand, nine hundred ninety-nine".