326720011 has 2 divisors, whose sum is σ = 326720012. Its totient is φ = 326720010.

The previous prime is 326719999. The next prime is 326720033. The reversal of 326720011 is 110027623.

It is an a-pointer prime, because the next prime (326720033) can be obtained adding 326720011 to its sum of digits (22).

It is a weak prime.

It is an emirp because it is prime and its reverse (110027623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326720011 - 2¹⁷ = 326588939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (326720311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163360005 + 163360006.

It is an arithmetic number, because the mean of its divisors is an integer number (163360006).

Almost surely, 2^326720011 is an apocalyptic number.

326720011 is a deficient number, since it is larger than the sum of its proper divisors (1).

326720011 is an equidigital number, since it uses as much as digits as its factorization.

326720011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 326720011 is about 18075.3979485930. The cubic root of 326720011 is about 688.7451891456.

Adding to 326720011 its reverse (110027623), we get a palindrome (436747634).

The spelling of 326720011 in words is "three hundred twenty-six million, seven hundred twenty thousand, eleven".