321332101 has 2 divisors, whose sum is σ = 321332102. Its totient is φ = 321332100.

The previous prime is 321332083. The next prime is 321332131. The reversal of 321332101 is 101233123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320768100 + 564001 = 17910^2 + 751^2 .

It is an emirp because it is prime and its reverse (101233123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321332101 - 2⁷ = 321331973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321332131) 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, 160666050 + 160666051.

It is an arithmetic number, because the mean of its divisors is an integer number (160666051).

Almost surely, 2^321332101 is an apocalyptic number.

It is an amenable number.

321332101 is a deficient number, since it is larger than the sum of its proper divisors (1).

321332101 is an equidigital number, since it uses as much as digits as its factorization.

321332101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 321332101 is about 17925.7385064047. The cubic root of 321332101 is about 684.9381733319.

Adding to 321332101 its reverse (101233123), we get a palindrome (422565224).

The spelling of 321332101 in words is "three hundred twenty-one million, three hundred thirty-two thousand, one hundred one".