213144104442 has 32 divisors (see below), whose sum is σ = 432060393600. Its totient is φ = 70089643008.

The previous prime is 213144104431. The next prime is 213144104443. The reversal of 213144104442 is 244401441312.

It is a happy number.

213144104442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213144104443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220183 + ... + 689034.

It is an arithmetic number, because the mean of its divisors is an integer number (13501887300).

Almost surely, 2^213144104442 is an apocalyptic number.

213144104442 is an abundant number, since it is smaller than the sum of its proper divisors (218916289158).

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

213144104442 is a wasteful number, since it uses less digits than its factorization.

213144104442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909750.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 213144104442 its reverse (244401441312), we get a palindrome (457545545754).

The spelling of 213144104442 in words is "two hundred thirteen billion, one hundred forty-four million, one hundred four thousand, four hundred forty-two".