321101089 has 2 divisors, whose sum is σ = 321101090. Its totient is φ = 321101088.

The previous prime is 321101071. The next prime is 321101093. The reversal of 321101089 is 980101123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228614400 + 92486689 = 15120^2 + 9617^2 .

It is a cyclic number.

It is not a de Polignac number, because 321101089 - 2⁵ = 321101057 is a prime.

It is not a weakly prime, because it can be changed into another prime (321101009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160550544 + 160550545.

It is an arithmetic number, because the mean of its divisors is an integer number (160550545).

Almost surely, 2^321101089 is an apocalyptic number.

It is an amenable number.

321101089 is a deficient number, since it is larger than the sum of its proper divisors (1).

321101089 is an equidigital number, since it uses as much as digits as its factorization.

321101089 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 square root of 321101089 is about 17919.2937639852. The cubic root of 321101089 is about 684.7739954508.

The spelling of 321101089 in words is "three hundred twenty-one million, one hundred one thousand, eighty-nine".