106321 has 2 divisors, whose sum is σ = 106322. Its totient is φ = 106320.

The previous prime is 106319. The next prime is 106331. The reversal of 106321 is 123601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55696 + 50625 = 236^2 + 225^2 .

It is an emirp because it is prime and its reverse (123601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106321 - 2¹ = 106319 is a prime.

It is a super-2 number, since 2×106321² = 22608310082, which contains 22 as substring.

Together with 106319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (106331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53160 + 53161.

It is an arithmetic number, because the mean of its divisors is an integer number (53161).

2¹⁰⁶³²¹ is an apocalyptic number.

It is an amenable number.

106321 is a deficient number, since it is larger than the sum of its proper divisors (1).

106321 is an equidigital number, since it uses as much as digits as its factorization.

106321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 106321 is about 326.0690111004. The cubic root of 106321 is about 47.3739594780.

Adding to 106321 its reverse (123601), we get a palindrome (229922).

The spelling of 106321 in words is "one hundred six thousand, three hundred twenty-one".