2321321 has 4 divisors (see below), whose sum is σ = 2422272. Its totient is φ = 2220372.

The previous prime is 2321317. The next prime is 2321329. The reversal of 2321321 is 1231232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2321321 - 2² = 2321317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2321296 and 2321305.

It is not an unprimeable number, because it can be changed into a prime (2321329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50441 + ... + 50486.

It is an arithmetic number, because the mean of its divisors is an integer number (605568).

2^2321321 is an apocalyptic number.

It is an amenable number.

2321321 is a deficient number, since it is larger than the sum of its proper divisors (100951).

2321321 is a wasteful number, since it uses less digits than its factorization.

2321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100950.

The product of its digits is 72, while the sum is 14.

The square root of 2321321 is about 1523.5881989567. The cubic root of 2321321 is about 132.4072401672.

Adding to 2321321 its reverse (1231232), we get a palindrome (3552553).

The spelling of 2321321 in words is "two million, three hundred twenty-one thousand, three hundred twenty-one".