213232223009 has 4 divisors (see below), whose sum is σ = 229634701716. Its totient is φ = 196829744304.

The previous prime is 213232222981. The next prime is 213232223021. The reversal of 213232223009 is 900322232312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96579235984 + 116652987025 = 310772^2 + 341545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213232223009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213232223509) 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, 8201239334 + ... + 8201239359.

It is an arithmetic number, because the mean of its divisors is an integer number (57408675429).

Almost surely, 2^213232223009 is an apocalyptic number.

It is an amenable number.

213232223009 is a deficient number, since it is larger than the sum of its proper divisors (16402478707).

213232223009 is a wasteful number, since it uses less digits than its factorization.

213232223009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16402478706.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 213232223009 in words is "two hundred thirteen billion, two hundred thirty-two million, two hundred twenty-three thousand, nine".