16211423 has 4 divisors (see below), whose sum is σ = 16339200. Its totient is φ = 16083648.

The previous prime is 16211417. The next prime is 16211449. The reversal of 16211423 is 32411261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32411261 = 3163 ⋅10247.

It is a cyclic number.

It is not a de Polignac number, because 16211423 - 2¹⁶ = 16145887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16211395 and 16211404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16211453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63698 + ... + 63951.

It is an arithmetic number, because the mean of its divisors is an integer number (4084800).

Almost surely, 2^16211423 is an apocalyptic number.

16211423 is a deficient number, since it is larger than the sum of its proper divisors (127777).

16211423 is a wasteful number, since it uses less digits than its factorization.

16211423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127776.

The product of its digits is 288, while the sum is 20.

The square root of 16211423 is about 4026.3411430230. The cubic root of 16211423 is about 253.0892580332.

Adding to 16211423 its reverse (32411261), we get a palindrome (48622684).

The spelling of 16211423 in words is "sixteen million, two hundred eleven thousand, four hundred twenty-three".