21010044234 has 8 divisors (see below), whose sum is σ = 42020088480. Its totient is φ = 7003348076.

The previous prime is 21010044217. The next prime is 21010044281. The reversal of 21010044234 is 43244001012.

21010044234 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

21010044234 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21010044234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750837014 + ... + 1750837025.

It is an arithmetic number, because the mean of its divisors is an integer number (5252511060).

Almost surely, 2^21010044234 is an apocalyptic number.

21010044234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21010044234 is a wasteful number, since it uses less digits than its factorization.

21010044234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501674044.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21010044234 its reverse (43244001012), we get a palindrome (64254045246).

The spelling of 21010044234 in words is "twenty-one billion, ten million, forty-four thousand, two hundred thirty-four".