109081000321 has 2 divisors, whose sum is σ = 109081000322. Its totient is φ = 109081000320.

The previous prime is 109081000289. The next prime is 109081000363. The reversal of 109081000321 is 123000180901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106289040400 + 2791959921 = 326020^2 + 52839^2 .

It is a cyclic number.

It is not a de Polignac number, because 109081000321 - 2⁵ = 109081000289 is a prime.

It is not a weakly prime, because it can be changed into another prime (109081000421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54540500160 + 54540500161.

It is an arithmetic number, because the mean of its divisors is an integer number (54540500161).

Almost surely, 2^109081000321 is an apocalyptic number.

It is an amenable number.

109081000321 is a deficient number, since it is larger than the sum of its proper divisors (1).

109081000321 is an equidigital number, since it uses as much as digits as its factorization.

109081000321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 109081000321 in words is "one hundred nine billion, eighty-one million, three hundred twenty-one", and thus it is an aban number.