123342 has 16 divisors (see below), whose sum is σ = 251472. Its totient is φ = 40320.

The previous prime is 123341. The next prime is 123373. The reversal of 123342 is 243321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123341) 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, 198 + ... + 534.

It is an arithmetic number, because the mean of its divisors is an integer number (15717).

2¹²³³⁴² is an apocalyptic number.

123342 is an abundant number, since it is smaller than the sum of its proper divisors (128130).

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

123342 is a wasteful number, since it uses less digits than its factorization.

123342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403.

The product of its digits is 144, while the sum is 15.

The square root of 123342 is about 351.2007972656. The cubic root of 123342 is about 49.7779486572. Note that the first 3 decimals are identical.

Adding to 123342 its reverse (243321), we get a palindrome (366663).

It can be divided in two parts, 1233 and 42, that added together give a triangular number (1275 = T₅₀).

The spelling of 123342 in words is "one hundred twenty-three thousand, three hundred forty-two", and thus it is an iban number.