210321320219 has 2 divisors, whose sum is σ = 210321320220. Its totient is φ = 210321320218.

The previous prime is 210321320203. The next prime is 210321320233. The reversal of 210321320219 is 912023123012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210321320219 - 2⁴ = 210321320203 is a prime.

It is a super-2 number, since 2×210321320219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210321320299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105160660109 + 105160660110.

It is an arithmetic number, because the mean of its divisors is an integer number (105160660110).

Almost surely, 2^210321320219 is an apocalyptic number.

210321320219 is a deficient number, since it is larger than the sum of its proper divisors (1).

210321320219 is an equidigital number, since it uses as much as digits as its factorization.

210321320219 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 26.

The spelling of 210321320219 in words is "two hundred ten billion, three hundred twenty-one million, three hundred twenty thousand, two hundred nineteen".