213534433200 has 240 divisors, whose sum is σ = 746607142656. Its totient is φ = 51738086400.

The previous prime is 213534433183. The next prime is 213534433207. The reversal of 213534433200 is 2334435312.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (213534433207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35544597 + ... + 35550603.

Almost surely, 2^213534433200 is an apocalyptic number.

213534433200 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 213534433200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373303571328).

213534433200 is an abundant number, since it is smaller than the sum of its proper divisors (533072709456).

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

213534433200 is a wasteful number, since it uses less digits than its factorization.

213534433200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732 (or 8721 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 213534433200 its reverse (2334435312), we get a palindrome (215868868512).

The spelling of 213534433200 in words is "two hundred thirteen billion, five hundred thirty-four million, four hundred thirty-three thousand, two hundred".