21344410102 has 8 divisors (see below), whose sum is σ = 32034106512. Its totient is φ = 10666374600.

The previous prime is 21344410091. The next prime is 21344410123. The reversal of 21344410102 is 20101444312.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2910649 + ... + 2917972.

It is an arithmetic number, because the mean of its divisors is an integer number (4004263314).

Almost surely, 2^21344410102 is an apocalyptic number.

21344410102 is a deficient number, since it is larger than the sum of its proper divisors (10689696410).

21344410102 is a wasteful number, since it uses less digits than its factorization.

21344410102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830454.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21344410102 its reverse (20101444312), we get a palindrome (41445854414).

The spelling of 21344410102 in words is "twenty-one billion, three hundred forty-four million, four hundred ten thousand, one hundred two".