213231333232 has 20 divisors (see below), whose sum is σ = 414094273056. Its totient is φ = 106368295040.

The previous prime is 213231333223. The next prime is 213231333283. The reversal of 213231333232 is 232333132312.

It is a self number, because there is not a number n which added to its sum of digits gives 213231333232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15453613 + ... + 15467404.

Almost surely, 2^213231333232 is an apocalyptic number.

It is an amenable number.

213231333232 is a deficient number, since it is larger than the sum of its proper divisors (200862939824).

213231333232 is a wasteful number, since it uses less digits than its factorization.

213231333232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30921456 (or 30921450 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 213231333232 its reverse (232333132312), we get a palindrome (445564465544).

The spelling of 213231333232 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred thirty-three thousand, two hundred thirty-two".