10421243 has 4 divisors (see below), whose sum is σ = 11910000. Its totient is φ = 8932488.

The previous prime is 10421233. The next prime is 10421251. The reversal of 10421243 is 34212401.

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 10421243 - 2¹⁴ = 10404859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421233) 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, 744368 + ... + 744381.

It is an arithmetic number, because the mean of its divisors is an integer number (2977500).

Almost surely, 2^10421243 is an apocalyptic number.

10421243 is a deficient number, since it is larger than the sum of its proper divisors (1488757).

10421243 is an equidigital number, since it uses as much as digits as its factorization.

10421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488756.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10421243 is about 3228.1950065013. The cubic root of 10421243 is about 218.4270938648.

Adding to 10421243 its reverse (34212401), we get a palindrome (44633644).

The spelling of 10421243 in words is "ten million, four hundred twenty-one thousand, two hundred forty-three".