21343341016 has 32 divisors (see below), whose sum is σ = 42387695280. Its totient is φ = 10040396800.

The previous prime is 21343341011. The next prime is 21343341023. The reversal of 21343341016 is 61014334312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343341011) 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, 383436 + ... + 435556.

Almost surely, 2^21343341016 is an apocalyptic number.

It is an amenable number.

21343341016 is a deficient number, since it is larger than the sum of its proper divisors (21044354264).

21343341016 is a wasteful number, since it uses less digits than its factorization.

21343341016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55155 (or 55151 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21343341016 its reverse (61014334312), we get a palindrome (82357675328).

The spelling of 21343341016 in words is "twenty-one billion, three hundred forty-three million, three hundred forty-one thousand, sixteen".