21324322342312 has 32 divisors (see below), whose sum is σ = 44332980141600. Its totient is φ = 9533974219200.

The previous prime is 21324322342159. The next prime is 21324322342391.

It is a happy number.

21324322342312 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1986239262 + ... + 1986249997.

It is an arithmetic number, because the mean of its divisors is an integer number (1385405629425).

Almost surely, 2^{21324322342312} is an apocalyptic number.

21324322342312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21324322342312 is an abundant number, since it is smaller than the sum of its proper divisors (23008657799288).

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

21324322342312 is a wasteful number, since it uses less digits than its factorization.

21324322342312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972489337 (or 3972489333 counting only the distinct ones).

The product of its digits is 82944, while the sum is 34.

It can be divided in two parts, 2132432 and 2342312, that added together give a palindrome (4474744).

The spelling of 21324322342312 in words is "twenty-one trillion, three hundred twenty-four billion, three hundred twenty-two million, three hundred forty-two thousand, three hundred twelve".