21044110314434 has 16 divisors (see below), whose sum is σ = 32162994559872. Its totient is φ = 10323127449648.

The previous prime is 21044110314433. The next prime is 21044110314497. The reversal of 21044110314434 is 43441301144012.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21044110314434.

It is not an unprimeable number, because it can be changed into a prime (21044110314431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061114 + ... + 6573749.

It is an arithmetic number, because the mean of its divisors is an integer number (2010187159992).

Almost surely, 2^{21044110314434} is an apocalyptic number.

21044110314434 is a deficient number, since it is larger than the sum of its proper divisors (11118884245438).

21044110314434 is a wasteful number, since it uses less digits than its factorization.

21044110314434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660921.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 21044110314434 its reverse (43441301144012), we get a palindrome (64485411458446).

The spelling of 21044110314434 in words is "twenty-one trillion, forty-four billion, one hundred ten million, three hundred fourteen thousand, four hundred thirty-four".