21343312242204 has 24 divisors (see below), whose sum is σ = 49801271721600. Its totient is φ = 7114407439344.

The previous prime is 21343312242181. The next prime is 21343312242209. The reversal of 21343312242204 is 40224221334312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343312242209) 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, 679554 + ... + 6568745.

It is an arithmetic number, because the mean of its divisors is an integer number (2075052988400).

Almost surely, 2^{21343312242204} is an apocalyptic number.

It is an amenable number.

21343312242204 is an abundant number, since it is smaller than the sum of its proper divisors (28457959479396).

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

21343312242204 is a wasteful number, since it uses less digits than its factorization.

21343312242204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7493689 (or 7493687 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 21343312242204 its reverse (40224221334312), we get a palindrome (61567533576516).

The spelling of 21343312242204 in words is "twenty-one trillion, three hundred forty-three billion, three hundred twelve million, two hundred forty-two thousand, two hundred four".