10213321 has 4 divisors (see below), whose sum is σ = 10278532. Its totient is φ = 10148112.

The previous prime is 10213319. The next prime is 10213331. The reversal of 10213321 is 12331201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12331201 = 41 ⋅300761.

It can be written as a sum of positive squares in 2 ways, for example, as 1428025 + 8785296 = 1195^2 + 2964^2 .

It is a cyclic number.

It is not a de Polignac number, because 10213321 - 2¹ = 10213319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10213331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32370 + ... + 32683.

It is an arithmetic number, because the mean of its divisors is an integer number (2569633).

Almost surely, 2^10213321 is an apocalyptic number.

It is an amenable number.

10213321 is a deficient number, since it is larger than the sum of its proper divisors (65211).

10213321 is an equidigital number, since it uses as much as digits as its factorization.

10213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65210.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 10213321 is about 3195.8286875238. The cubic root of 10213321 is about 216.9646569040.

Adding to 10213321 its reverse (12331201), we get a palindrome (22544522).

The spelling of 10213321 in words is "ten million, two hundred thirteen thousand, three hundred twenty-one".