12323243442 has 32 divisors (see below), whose sum is σ = 25790077440. Its totient is φ = 3920780160.

The previous prime is 12323243399. The next prime is 12323243453. The reversal of 12323243442 is 24434232321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440217 + ... + 467372.

It is an arithmetic number, because the mean of its divisors is an integer number (805939920).

Almost surely, 2^12323243442 is an apocalyptic number.

12323243442 is an abundant number, since it is smaller than the sum of its proper divisors (13466833998).

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

12323243442 is a wasteful number, since it uses less digits than its factorization.

12323243442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907698.

The product of its digits is 27648, while the sum is 30.

Adding to 12323243442 its reverse (24434232321), we get a palindrome (36757475763).

The spelling of 12323243442 in words is "twelve billion, three hundred twenty-three million, two hundred forty-three thousand, four hundred forty-two".