2113220324209 has 2 divisors, whose sum is σ = 2113220324210. Its totient is φ = 2113220324208.

The previous prime is 2113220324177. The next prime is 2113220324227. The reversal of 2113220324209 is 9024230223112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1541888425984 + 571331898225 = 1241728^2 + 755865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113220324209 - 2⁵ = 2113220324177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113220324239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056610162104 + 1056610162105.

It is an arithmetic number, because the mean of its divisors is an integer number (1056610162105).

Almost surely, 2^{2113220324209} is an apocalyptic number.

It is an amenable number.

2113220324209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113220324209 is an equidigital number, since it uses as much as digits as its factorization.

2113220324209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 2113220324209 in words is "two trillion, one hundred thirteen billion, two hundred twenty million, three hundred twenty-four thousand, two hundred nine".