110000320021 has 2 divisors, whose sum is σ = 110000320022. Its totient is φ = 110000320020.

The previous prime is 110000320019. The next prime is 110000320039. The reversal of 110000320021 is 120023000011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93690475921 + 16309844100 = 306089^2 + 127710^2 .

It is a cyclic number.

It is not a de Polignac number, because 110000320021 - 2¹ = 110000320019 is a prime.

Together with 110000320019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110000320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000160010 + 55000160011.

It is an arithmetic number, because the mean of its divisors is an integer number (55000160011).

Almost surely, 2^110000320021 is an apocalyptic number.

It is an amenable number.

110000320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110000320021 is an equidigital number, since it uses as much as digits as its factorization.

110000320021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 110000320021 its reverse (120023000011), we get a palindrome (230023320032).

The spelling of 110000320021 in words is "one hundred ten billion, three hundred twenty thousand, twenty-one".