21014110340 has 24 divisors (see below), whose sum is σ = 44338785792. Its totient is φ = 8365805280.

The previous prime is 21014110331. The next prime is 21014110343. The reversal of 21014110340 is 4301141012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21014110343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2485604 + ... + 2494043.

It is an arithmetic number, because the mean of its divisors is an integer number (1847449408).

Almost surely, 2^21014110340 is an apocalyptic number.

21014110340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21014110340 is an abundant number, since it is smaller than the sum of its proper divisors (23324675452).

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

21014110340 is a wasteful number, since it uses less digits than its factorization.

21014110340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979867 (or 4979865 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21014110340 its reverse (4301141012), we get a palindrome (25315251352).

The spelling of 21014110340 in words is "twenty-one billion, fourteen million, one hundred ten thousand, three hundred forty".