12123342 has 48 divisors (see below), whose sum is σ = 32752512. Its totient is φ = 3148560.

The previous prime is 12123341. The next prime is 12123359. The reversal of 12123342 is 24332121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2988 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (682344).

Almost surely, 2^12123342 is an apocalyptic number.

12123342 is an abundant number, since it is smaller than the sum of its proper divisors (20629170).

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

12123342 is a wasteful number, since it uses less digits than its factorization.

12123342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773 (or 8770 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 12123342 is about 3481.8589862313. The cubic root of 12123342 is about 229.7245726360.

Adding to 12123342 its reverse (24332121), we get a palindrome (36455463).

It can be divided in two parts, 1212 and 3342, that multiplied together give a palindrome (4050504).

The spelling of 12123342 in words is "twelve million, one hundred twenty-three thousand, three hundred forty-two".