213211444423344 has 40 divisors (see below), whose sum is σ = 558341385291312. Its totient is φ = 70096913233920.

The previous prime is 213211444423343. The next prime is 213211444423361. The reversal of 213211444423344 is 443324444112312.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 213211444423296 and 213211444423305.

It is not an unprimeable number, because it can be changed into a prime (213211444423343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30424003977 + ... + 30424010984.

Almost surely, 2^{213211444423344} is an apocalyptic number.

213211444423344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213211444423344 is an abundant number, since it is smaller than the sum of its proper divisors (345129940867968).

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

213211444423344 is a wasteful number, since it uses less digits than its factorization.

213211444423344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60848015045 (or 60848015039 counting only the distinct ones).

The product of its digits is 884736, while the sum is 42.

Adding to 213211444423344 its reverse (443324444112312), we get a palindrome (656535888535656).

The spelling of 213211444423344 in words is "two hundred thirteen trillion, two hundred eleven billion, four hundred forty-four million, four hundred twenty-three thousand, three hundred forty-four".