11405423 has 2 divisors, whose sum is σ = 11405424. Its totient is φ = 11405422.

The previous prime is 11405411. The next prime is 11405431. The reversal of 11405423 is 32450411.

11405423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11405423 - 2⁸ = 11405167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11405395 and 11405404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11405473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702711 + 5702712.

It is an arithmetic number, because the mean of its divisors is an integer number (5702712).

Almost surely, 2^11405423 is an apocalyptic number.

11405423 is a deficient number, since it is larger than the sum of its proper divisors (1).

11405423 is an equidigital number, since it uses as much as digits as its factorization.

11405423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 11405423 is about 3377.1915847343. The cubic root of 11405423 is about 225.0973932273.

Adding to 11405423 its reverse (32450411), we get a palindrome (43855834).

The spelling of 11405423 in words is "eleven million, four hundred five thousand, four hundred twenty-three".