213323152512 has 128 divisors (see below), whose sum is σ = 607201479360. Its totient is φ = 66118418432.

The previous prime is 213323152507. The next prime is 213323152541. The reversal of 213323152512 is 215251323312.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 213323152512.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 344968 + ... + 738680.

Almost surely, 2^213323152512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213323152512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303600739680).

213323152512 is an abundant number, since it is smaller than the sum of its proper divisors (393878326848).

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

213323152512 is a wasteful number, since it uses less digits than its factorization.

213323152512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393830 (or 393818 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 213323152512 its reverse (215251323312), we get a palindrome (428574475824).

The spelling of 213323152512 in words is "two hundred thirteen billion, three hundred twenty-three million, one hundred fifty-two thousand, five hundred twelve".