213133230232 has 64 divisors (see below), whose sum is σ = 450263520000. Its totient is φ = 93843598464.

The previous prime is 213133230217. The next prime is 213133230281. The reversal of 213133230232 is 232032331312.

It is a junction number, because it is equal to n+sod(n) for n = 213133230197 and 213133230206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789019 + ... + 1024117.

It is an arithmetic number, because the mean of its divisors is an integer number (7035367500).

Almost surely, 2^213133230232 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 213133230232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225131760000).

213133230232 is an abundant number, since it is smaller than the sum of its proper divisors (237130289768).

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

213133230232 is a wasteful number, since it uses less digits than its factorization.

213133230232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235520 (or 235516 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 213133230232 its reverse (232032331312), we get a palindrome (445165561544).

The spelling of 213133230232 in words is "two hundred thirteen billion, one hundred thirty-three million, two hundred thirty thousand, two hundred thirty-two".