13223044442442 has 32 divisors (see below), whose sum is σ = 26842699457280. Its totient is φ = 4341837427200.

The previous prime is 13223044442389. The next prime is 13223044442449. The reversal of 13223044442442 is 24424444032231.

It is a self number, because there is not a number n which added to its sum of digits gives 13223044442442.

It is not an unprimeable number, because it can be changed into a prime (13223044442449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32008059 + ... + 32418542.

It is an arithmetic number, because the mean of its divisors is an integer number (838834358040).

Almost surely, 2^{13223044442442} is an apocalyptic number.

13223044442442 is an abundant number, since it is smaller than the sum of its proper divisors (13619655014838).

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

13223044442442 is a wasteful number, since it uses less digits than its factorization.

13223044442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64427118.

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 13223044442442 its reverse (24424444032231), we get a palindrome (37647488474673).

The spelling of 13223044442442 in words is "thirteen trillion, two hundred twenty-three billion, forty-four million, four hundred forty-two thousand, four hundred forty-two".