21344011410 has 48 divisors (see below), whose sum is σ = 51454089216. Its totient is φ = 5666463936.

The previous prime is 21344011387. The next prime is 21344011427. The reversal of 21344011410 is 1411044312.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1566447 + ... + 1580013.

It is an arithmetic number, because the mean of its divisors is an integer number (1071960192).

Almost surely, 2^21344011410 is an apocalyptic number.

21344011410 is an abundant number, since it is smaller than the sum of its proper divisors (30110077806).

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

21344011410 is a wasteful number, since it uses less digits than its factorization.

21344011410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14035 (or 13806 counting only the distinct ones).

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

Adding to 21344011410 its reverse (1411044312), we get a palindrome (22755055722).

The spelling of 21344011410 in words is "twenty-one billion, three hundred forty-four million, eleven thousand, four hundred ten".