21343344334312 has 128 divisors (see below), whose sum is σ = 54981066792960. Its totient is φ = 7497417957120.

The previous prime is 21343344334303. The next prime is 21343344334339.

21343344334312 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30646968 + ... + 31335655.

It is an arithmetic number, because the mean of its divisors is an integer number (429539584320).

Almost surely, 2^{21343344334312} is an apocalyptic number.

21343344334312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21343344334312 is an abundant number, since it is smaller than the sum of its proper divisors (33637722458648).

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

21343344334312 is a wasteful number, since it uses less digits than its factorization.

21343344334312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61982703 (or 61982699 counting only the distinct ones).

The product of its digits is 746496, while the sum is 40.

It can be divided in two parts, 2134334 and 4334312, that added together give a palindrome (6468646).

The spelling of 21343344334312 in words is "twenty-one trillion, three hundred forty-three billion, three hundred forty-four million, three hundred thirty-four thousand, three hundred twelve".