10423021 has 4 divisors (see below), whose sum is σ = 11912032. Its totient is φ = 8934012.

The previous prime is 10423019. The next prime is 10423043. The reversal of 10423021 is 12032401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10423021 - 2¹ = 10423019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10422992 and 10423010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10423051) 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, 744495 + ... + 744508.

It is an arithmetic number, because the mean of its divisors is an integer number (2978008).

Almost surely, 2^10423021 is an apocalyptic number.

It is an amenable number.

10423021 is a deficient number, since it is larger than the sum of its proper divisors (1489011).

10423021 is an equidigital number, since it uses as much as digits as its factorization.

10423021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489010.

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

The square root of 10423021 is about 3228.4703808460. The cubic root of 10423021 is about 218.4395153290.

Adding to 10423021 its reverse (12032401), we get a palindrome (22455422).

The spelling of 10423021 in words is "ten million, four hundred twenty-three thousand, twenty-one".