10613321 has 4 divisors (see below), whose sum is σ = 11237652. Its totient is φ = 9988992.

The previous prime is 10613279. The next prime is 10613341. The reversal of 10613321 is 12331601.

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 6431296 + 4182025 = 2536^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 10613321 - 2⁶ = 10613257 is a prime.

It is a super-2 number, since 2×10613321² = 225285165298082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 624313 = 10613321 / (1 + 0 + 6 + 1 + 3 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10613321.

It is not an unprimeable number, because it can be changed into a prime (10613341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312140 + ... + 312173.

It is an arithmetic number, because the mean of its divisors is an integer number (2809413).

Almost surely, 2^10613321 is an apocalyptic number.

It is an amenable number.

10613321 is a deficient number, since it is larger than the sum of its proper divisors (624331).

10613321 is an equidigital number, since it uses as much as digits as its factorization.

10613321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624330.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 10613321 is about 3257.8092332118. The cubic root of 10613321 is about 219.7609041568.

Adding to 10613321 its reverse (12331601), we get a palindrome (22944922).

The spelling of 10613321 in words is "ten million, six hundred thirteen thousand, three hundred twenty-one".