213443311000 has 64 divisors (see below), whose sum is σ = 499883024160. Its totient is φ = 85304560000.

The previous prime is 213443310991. The next prime is 213443311013. The reversal of 213443311000 is 113344312.

213443311000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1090635 + ... + 1271365.

Almost surely, 2^213443311000 is an apocalyptic number.

213443311000 is a gapful number since it is divisible by the number (20) 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 213443311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249941512080).

213443311000 is an abundant number, since it is smaller than the sum of its proper divisors (286439713160).

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

213443311000 is a wasteful number, since it uses less digits than its factorization.

213443311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181933 (or 181919 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213443311000 its reverse (113344312), we get a palindrome (213556655312).

The spelling of 213443311000 in words is "two hundred thirteen billion, four hundred forty-three million, three hundred eleven thousand".