12010321 has 6 divisors (see below), whose sum is σ = 12439622. Its totient is φ = 11595360.

The previous prime is 12010319. The next prime is 12010357. The reversal of 12010321 is 12301021.

12010321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11025 + 11999296 = 105^2 + 3464^2 .

It is not a de Polignac number, because 12010321 - 2¹ = 12010319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010298 and 12010307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6300 + ... + 7981.

Almost surely, 2^12010321 is an apocalyptic number.

It is an amenable number.

12010321 is a deficient number, since it is larger than the sum of its proper divisors (429301).

12010321 is an equidigital number, since it uses as much as digits as its factorization.

12010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14339 (or 14310 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12010321 is about 3465.5910029892. The cubic root of 12010321 is about 229.0084663448.

Adding to 12010321 its reverse (12301021), we get a palindrome (24311342).

The spelling of 12010321 in words is "twelve million, ten thousand, three hundred twenty-one".