213333043636 has 12 divisors (see below), whose sum is σ = 373337817412. Its totient is φ = 106665095808.

The previous prime is 213333043631. The next prime is 213333043643. The reversal of 213333043636 is 636340333312.

It can be written as a sum of positive squares in 2 ways, for example, as 46550651536 + 166782392100 = 215756^2 + 408390^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213333043595 and 213333043604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213333043631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25606 + ... + 653698.

Almost surely, 2^213333043636 is an apocalyptic number.

It is an amenable number.

213333043636 is a deficient number, since it is larger than the sum of its proper divisors (160004773776).

213333043636 is a wasteful number, since it uses less digits than its factorization.

213333043636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713010 (or 713008 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 37.

Adding to 213333043636 its reverse (636340333312), we get a palindrome (849673376948).

The spelling of 213333043636 in words is "two hundred thirteen billion, three hundred thirty-three million, forty-three thousand, six hundred thirty-six".