10421305 has 8 divisors (see below), whose sum is σ = 12553344. Its totient is φ = 8305200.

The previous prime is 10421297. The next prime is 10421311. The reversal of 10421305 is 50312401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10421305 - 2³ = 10421297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2491 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (1569168).

Almost surely, 2^10421305 is an apocalyptic number.

It is an amenable number.

10421305 is a deficient number, since it is larger than the sum of its proper divisors (2132039).

10421305 is an equidigital number, since it uses as much as digits as its factorization.

10421305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10421305 is about 3228.2046093765. The cubic root of 10421305 is about 218.4275270330.

Adding to 10421305 its reverse (50312401), we get a palindrome (60733706).

The spelling of 10421305 in words is "ten million, four hundred twenty-one thousand, three hundred five".