2103321 has 8 divisors (see below), whose sum is σ = 3059424.
Its totient is φ = 1274720.
The previous prime is 2103317. The next prime is 2103377. The reversal of 2103321 is 1233012.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2103321 - 22 = 2103317 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2103297 and 2103306.
It is not an unprimeable number, because it can be changed into a prime (2103301) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31836 + ... + 31901.
It is an arithmetic number, because the mean of its divisors is an integer number (382428).
22103321 is an apocalyptic number.
It is an amenable number.
2103321 is a deficient number, since it is larger than the sum of its proper divisors (956103).
2103321 is a wasteful number, since it uses less digits than its factorization.
2103321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63751.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 2103321 is about 1450.2830758166.
The cubic root of 2103321 is about 128.1253857613.
Adding to 2103321 its reverse (1233012), we get a palindrome (3336333).
The spelling of 2103321 in words is "two million, one hundred three thousand, three hundred twenty-one".