12311423 has 8 divisors (see below), whose sum is σ = 12636000. Its totient is φ = 11990368.

The previous prime is 12311419. The next prime is 12311443. The reversal of 12311423 is 32411321.

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

It is a cyclic number.

It is not a de Polignac number, because 12311423 - 2² = 12311419 is a prime.

It is a super-2 number, since 2×12311423² = 303142272569858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311443) 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 7 ways as a sum of consecutive naturals, for example, 7118 + ... + 8676.

It is an arithmetic number, because the mean of its divisors is an integer number (1579500).

Almost surely, 2^12311423 is an apocalyptic number.

12311423 is a deficient number, since it is larger than the sum of its proper divisors (324577).

12311423 is a wasteful number, since it uses less digits than its factorization.

12311423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761.

The product of its digits is 144, while the sum is 17.

The square root of 12311423 is about 3508.7637424027. The cubic root of 12311423 is about 230.9064606319.

Adding to 12311423 its reverse (32411321), we get a palindrome (44722744).

The spelling of 12311423 in words is "twelve million, three hundred eleven thousand, four hundred twenty-three".