10015321 has 2 divisors, whose sum is σ = 10015322. Its totient is φ = 10015320.

The previous prime is 10015319. The next prime is 10015339. The reversal of 10015321 is 12351001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 3312400 = 2589^2 + 1820^2 .

It is a cyclic number.

It is not a de Polignac number, because 10015321 - 2¹ = 10015319 is a prime.

Together with 10015319, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10015301) 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 as a sum of consecutive naturals, namely, 5007660 + 5007661.

It is an arithmetic number, because the mean of its divisors is an integer number (5007661).

Almost surely, 2^10015321 is an apocalyptic number.

It is an amenable number.

10015321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10015321 is an equidigital number, since it uses as much as digits as its factorization.

10015321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 10015321 is about 3164.6991958162. The cubic root of 10015321 is about 215.5534398398.

Adding to 10015321 its reverse (12351001), we get a palindrome (22366322).

The spelling of 10015321 in words is "ten million, fifteen thousand, three hundred twenty-one".