123366 has 16 divisors (see below), whose sum is σ = 255600. Its totient is φ = 39648.

The previous prime is 123341. The next prime is 123373. The reversal of 123366 is 663321.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

123366 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181 + ... + 528.

It is an arithmetic number, because the mean of its divisors is an integer number (15975).

2¹²³³⁶⁶ is an apocalyptic number.

123366 is an abundant number, since it is smaller than the sum of its proper divisors (132234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123366 is a wasteful number, since it uses less digits than its factorization.

123366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its digits is 648, while the sum is 21.

The square root of 123366 is about 351.2349640910. The cubic root of 123366 is about 49.7811770608.

Adding to 123366 its reverse (663321), we get a palindrome (786687).

The spelling of 123366 in words is "one hundred twenty-three thousand, three hundred sixty-six".