213223613232 has 80 divisors (see below), whose sum is σ = 649824376832. Its totient is φ = 58955834880.

The previous prime is 213223613191. The next prime is 213223613269. The reversal of 213223613232 is 232316322312.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 213223613232.

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, 10224973 + ... + 10245804.

Almost surely, 2^213223613232 is an apocalyptic number.

It is an amenable number.

213223613232 is an abundant number, since it is smaller than the sum of its proper divisors (436600763600).

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

213223613232 is a wasteful number, since it uses less digits than its factorization.

213223613232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20470826 (or 20470820 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

Adding to 213223613232 its reverse (232316322312), we get a palindrome (445539935544).

The spelling of 213223613232 in words is "two hundred thirteen billion, two hundred twenty-three million, six hundred thirteen thousand, two hundred thirty-two".