10421023 has 2 divisors, whose sum is σ = 10421024. Its totient is φ = 10421022.

The previous prime is 10421009. The next prime is 10421029. The reversal of 10421023 is 32012401.

It is a strong prime.

It is an emirp because it is prime and its reverse (32012401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10421023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10420994 and 10421012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210511 + 5210512.

It is an arithmetic number, because the mean of its divisors is an integer number (5210512).

Almost surely, 2^10421023 is an apocalyptic number.

10421023 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421023 is an equidigital number, since it uses as much as digits as its factorization.

10421023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10421023 is about 3228.1609315522. The cubic root of 10421023 is about 218.4255568025.

Adding to 10421023 its reverse (32012401), we get a palindrome (42433424).

The spelling of 10421023 in words is "ten million, four hundred twenty-one thousand, twenty-three".