10317421 has 2 divisors, whose sum is σ = 10317422. Its totient is φ = 10317420.

The previous prime is 10317401. The next prime is 10317443. The reversal of 10317421 is 12471301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5428900 + 4888521 = 2330^2 + 2211^2 .

It is a cyclic number.

It is not a de Polignac number, because 10317421 - 2¹¹ = 10315373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10317401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5158710 + 5158711.

It is an arithmetic number, because the mean of its divisors is an integer number (5158711).

Almost surely, 2^10317421 is an apocalyptic number.

It is an amenable number.

10317421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10317421 is an equidigital number, since it uses as much as digits as its factorization.

10317421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 10317421 is about 3212.0742519437. The cubic root of 10317421 is about 217.6993090913.

Adding to 10317421 its reverse (12471301), we get a palindrome (22788722).

The spelling of 10317421 in words is "ten million, three hundred seventeen thousand, four hundred twenty-one".