16321423 has 2 divisors, whose sum is σ = 16321424. Its totient is φ = 16321422.

The previous prime is 16321397. The next prime is 16321441. The reversal of 16321423 is 32412361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16321423 - 2¹⁷ = 16190351 is a prime.

It is equal to p_1050448 and since 16321423 and 1050448 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 16321394 and 16321403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16321463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8160711 + 8160712.

It is an arithmetic number, because the mean of its divisors is an integer number (8160712).

Almost surely, 2^16321423 is an apocalyptic number.

16321423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16321423 is an equidigital number, since it uses as much as digits as its factorization.

16321423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 16321423 is about 4039.9780940000. The cubic root of 16321423 is about 253.6604003104.

Adding to 16321423 its reverse (32412361), we get a palindrome (48733784).

The spelling of 16321423 in words is "sixteen million, three hundred twenty-one thousand, four hundred twenty-three".