213445544312 has 256 divisors, whose sum is σ = 551600824320. Its totient is φ = 74754086400.

The previous prime is 213445544303. The next prime is 213445544317.

213445544312 is nontrivially palindromic in base 10.

213445544312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213445544317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47188883 + ... + 47193405.

It is an arithmetic number, because the mean of its divisors is an integer number (2154690720).

Almost surely, 2^213445544312 is an apocalyptic number.

213445544312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213445544312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275800412160).

213445544312 is an abundant number, since it is smaller than the sum of its proper divisors (338155280008).

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

213445544312 is a wasteful number, since it uses less digits than its factorization.

213445544312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714 (or 4710 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

It can be divided in two parts, 213445 and 544312, that added together give a palindrome (757757).

The spelling of 213445544312 in words is "two hundred thirteen billion, four hundred forty-five million, five hundred forty-four thousand, three hundred twelve".