10421315 has 4 divisors (see below), whose sum is σ = 12505584. Its totient is φ = 8337048.

The previous prime is 10421311. The next prime is 10421317. The reversal of 10421315 is 51312401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10421315 - 2² = 10421311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10421293 and 10421302.

It is not an unprimeable number, because it can be changed into a prime (10421311) 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, 1042127 + ... + 1042136.

It is an arithmetic number, because the mean of its divisors is an integer number (3126396).

Almost surely, 2^10421315 is an apocalyptic number.

10421315 is a deficient number, since it is larger than the sum of its proper divisors (2084269).

10421315 is an equidigital number, since it uses as much as digits as its factorization.

10421315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084268.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10421315 is about 3228.2061582247. The cubic root of 10421315 is about 218.4275968987.

Adding to 10421315 its reverse (51312401), we get a palindrome (61733716).

The spelling of 10421315 in words is "ten million, four hundred twenty-one thousand, three hundred fifteen".