21340241210 has 16 divisors (see below), whose sum is σ = 40434141600. Its totient is φ = 8086828176.

The previous prime is 21340241203. The next prime is 21340241257. The reversal of 21340241210 is 1214204312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56158340 + ... + 56158719.

It is an arithmetic number, because the mean of its divisors is an integer number (2527133850).

Almost surely, 2^21340241210 is an apocalyptic number.

21340241210 is a deficient number, since it is larger than the sum of its proper divisors (19093900390).

21340241210 is a wasteful number, since it uses less digits than its factorization.

21340241210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112317085.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21340241210 its reverse (1214204312), we get a palindrome (22554445522).

The spelling of 21340241210 in words is "twenty-one billion, three hundred forty million, two hundred forty-one thousand, two hundred ten".