12102320043442 has 8 divisors (see below), whose sum is σ = 19221331833756. Its totient is φ = 5695209432192.

The previous prime is 12102320043433. The next prime is 12102320043487. The reversal of 12102320043442 is 24434002320121.

12102320043442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12101708520001 + 611523441 = 3478751^2 + 24729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12102320043442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177975294723 + ... + 177975294790.

Almost surely, 2^{12102320043442} is an apocalyptic number.

12102320043442 is a deficient number, since it is larger than the sum of its proper divisors (7119011790314).

12102320043442 is a wasteful number, since it uses less digits than its factorization.

12102320043442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355950589532.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12102320043442 its reverse (24434002320121), we get a palindrome (36536322363563).

The spelling of 12102320043442 in words is "twelve trillion, one hundred two billion, three hundred twenty million, forty-three thousand, four hundred forty-two".