2010403321 has 4 divisors (see below), whose sum is σ = 2020608612. Its totient is φ = 2000198032.

The previous prime is 2010403313. The next prime is 2010403331. The reversal of 2010403321 is 1233040102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1884514921 + 125888400 = 43411^2 + 11220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010403321 - 2³ = 2010403313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010403295 and 2010403304.

It is not an unprimeable number, because it can be changed into a prime (2010403301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5102350 + ... + 5102743.

It is an arithmetic number, because the mean of its divisors is an integer number (505152153).

Almost surely, 2^2010403321 is an apocalyptic number.

It is an amenable number.

2010403321 is a deficient number, since it is larger than the sum of its proper divisors (10205291).

2010403321 is a wasteful number, since it uses less digits than its factorization.

2010403321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205290.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2010403321 is about 44837.5213520997. The cubic root of 2010403321 is about 1262.1018335418.

Adding to 2010403321 its reverse (1233040102), we get a palindrome (3243443423).

It can be divided in two parts, 2010403 and 321, that added together give a square (2010724 = 1418²).

The spelling of 2010403321 in words is "two billion, ten million, four hundred three thousand, three hundred twenty-one".