213230100444 has 12 divisors (see below), whose sum is σ = 497536901064. Its totient is φ = 71076700144.

The previous prime is 213230100443. The next prime is 213230100481. The reversal of 213230100444 is 444001032312.

213230100444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213230100443) 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 3 ways as a sum of consecutive naturals, for example, 8884587507 + ... + 8884587530.

It is an arithmetic number, because the mean of its divisors is an integer number (41461408422).

Almost surely, 2^213230100444 is an apocalyptic number.

It is an amenable number.

213230100444 is an abundant number, since it is smaller than the sum of its proper divisors (284306800620).

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

213230100444 is a wasteful number, since it uses less digits than its factorization.

213230100444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17769175044 (or 17769175042 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 213230100444 its reverse (444001032312), we get a palindrome (657231132756).

The spelling of 213230100444 in words is "two hundred thirteen billion, two hundred thirty million, one hundred thousand, four hundred forty-four".