2010321 has 12 divisors (see below), whose sum is σ = 2982772. Its totient is φ = 1303776.

The previous prime is 2010317. The next prime is 2010329. The reversal of 2010321 is 1230102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1134225 + 876096 = 1065^2 + 936^2 .

It is not a de Polignac number, because 2010321 - 2² = 2010317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2686 + ... + 3351.

2^2010321 is an apocalyptic number.

It is an amenable number.

2010321 is a deficient number, since it is larger than the sum of its proper divisors (972451).

2010321 is a wasteful number, since it uses less digits than its factorization.

2010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6077 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2010321 is about 1417.8578913276. The cubic root of 2010321 is about 126.2084606666.

Adding to 2010321 its reverse (1230102), we get a palindrome (3240423).

The spelling of 2010321 in words is "two million, ten thousand, three hundred twenty-one".