2123423 has 2 divisors, whose sum is σ = 2123424. Its totient is φ = 2123422.

The previous prime is 2123411. The next prime is 2123461. The reversal of 2123423 is 3243212.

2123423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123423 - 2⁸ = 2123167 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 2³ + 3⁸ + 4² + 2²¹ + 3⁹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123483) 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, 1061711 + 1061712.

It is an arithmetic number, because the mean of its divisors is an integer number (1061712).

2^2123423 is an apocalyptic number.

2123423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123423 is an equidigital number, since it uses as much as digits as its factorization.

2123423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 17.

The square root of 2123423 is about 1457.1969667825. The cubic root of 2123423 is about 128.5322684384.

Adding to 2123423 its reverse (3243212), we get a palindrome (5366635).

The spelling of 2123423 in words is "two million, one hundred twenty-three thousand, four hundred twenty-three".