21344410110 has 16 divisors (see below), whose sum is σ = 51226584336. Its totient is φ = 5691842688.

The previous prime is 21344410091. The next prime is 21344410123. The reversal of 21344410110 is 1101444312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355740139 + ... + 355740198.

It is an arithmetic number, because the mean of its divisors is an integer number (3201661521).

Almost surely, 2^21344410110 is an apocalyptic number.

21344410110 is an abundant number, since it is smaller than the sum of its proper divisors (29882174226).

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

21344410110 is a wasteful number, since it uses less digits than its factorization.

21344410110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711480347.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21344410110 its reverse (1101444312), we get a palindrome (22445854422).

The spelling of 21344410110 in words is "twenty-one billion, three hundred forty-four million, four hundred ten thousand, one hundred ten".