16311423 has 8 divisors (see below), whose sum is σ = 21973168. Its totient is φ = 10761984.

The previous prime is 16311419. The next prime is 16311467. The reversal of 16311423 is 32411361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16311423 - 2² = 16311419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16311423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16311223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27736 + ... + 28317.

It is an arithmetic number, because the mean of its divisors is an integer number (2746646).

Almost surely, 2^16311423 is an apocalyptic number.

16311423 is a deficient number, since it is larger than the sum of its proper divisors (5661745).

16311423 is an equidigital number, since it uses as much as digits as its factorization.

16311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56153.

The product of its digits is 432, while the sum is 21.

The square root of 16311423 is about 4038.7402738973. The cubic root of 16311423 is about 253.6085845213.

Adding to 16311423 its reverse (32411361), we get a palindrome (48722784).

The spelling of 16311423 in words is "sixteen million, three hundred eleven thousand, four hundred twenty-three".