10421123 has 2 divisors, whose sum is σ = 10421124. Its totient is φ = 10421122.

The previous prime is 10421107. The next prime is 10421129. The reversal of 10421123 is 32112401.

It is a strong prime.

It is an emirp because it is prime and its reverse (32112401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10421123 - 2⁴ = 10421107 is a prime.

It is a super-2 number, since 2×10421123² = 217199609162258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 10421098 and 10421107.

It is not a weakly prime, because it can be changed into another prime (10421129) by changing a digit.

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 as a sum of consecutive naturals, namely, 5210561 + 5210562.

It is an arithmetic number, because the mean of its divisors is an integer number (5210562).

Almost surely, 2^10421123 is an apocalyptic number.

10421123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421123 is an equidigital number, since it uses as much as digits as its factorization.

10421123 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 14.

The square root of 10421123 is about 3228.1764202100. The cubic root of 10421123 is about 218.4262554699.

Adding to 10421123 its reverse (32112401), we get a palindrome (42533524).

The spelling of 10421123 in words is "ten million, four hundred twenty-one thousand, one hundred twenty-three".