2110321 has 2 divisors, whose sum is σ = 2110322. Its totient is φ = 2110320.

The previous prime is 2110313. The next prime is 2110337. The reversal of 2110321 is 1230112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 314721 = 1340^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110321 - 2³ = 2110313 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110298 and 2110307.

It is not a weakly prime, because it can be changed into another prime (2110351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055160 + 1055161.

It is an arithmetic number, because the mean of its divisors is an integer number (1055161).

2^2110321 is an apocalyptic number.

It is an amenable number.

2110321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110321 is an equidigital number, since it uses as much as digits as its factorization.

2110321 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.

The square root of 2110321 is about 1452.6943931881. The cubic root of 2110321 is about 128.2673651324.

Adding to 2110321 its reverse (1230112), we get a palindrome (3340433).

The spelling of 2110321 in words is "two million, one hundred ten thousand, three hundred twenty-one".