13421423 has 4 divisors (see below), whose sum is σ = 13518120. Its totient is φ = 13324728.

The previous prime is 13421411. The next prime is 13421437. The reversal of 13421423 is 32412431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32412431 = 229 ⋅141539.

It is a cyclic number.

It is not a de Polignac number, because 13421423 - 2⁴ = 13421407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13421395 and 13421404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421453) 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, 48140 + ... + 48417.

It is an arithmetic number, because the mean of its divisors is an integer number (3379530).

Almost surely, 2^13421423 is an apocalyptic number.

13421423 is a deficient number, since it is larger than the sum of its proper divisors (96697).

13421423 is an equidigital number, since it uses as much as digits as its factorization.

13421423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96696.

The product of its digits is 576, while the sum is 20.

The square root of 13421423 is about 3663.5260337549. The cubic root of 13421423 is about 237.6472837136.

Adding to 13421423 its reverse (32412431), we get a palindrome (45833854).

The spelling of 13421423 in words is "thirteen million, four hundred twenty-one thousand, four hundred twenty-three".