213023322 has 12 divisors (see below), whose sum is σ = 461550570. Its totient is φ = 71007768.

The previous prime is 213023297. The next prime is 213023339. The reversal of 213023322 is 223320312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 211964481 + 1058841 = 14559^2 + 1029^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11834629 = 213023322 / (2 + 1 + 3 + 0 + 2 + 3 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 213023295 and 213023304.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5917297 + ... + 5917332.

Almost surely, 2^213023322 is an apocalyptic number.

213023322 is an abundant number, since it is smaller than the sum of its proper divisors (248527248).

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

213023322 is a wasteful number, since it uses less digits than its factorization.

213023322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834637 (or 11834634 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213023322 is about 14595.3184960110. The cubic root of 213023322 is about 597.2310579233.

Adding to 213023322 its reverse (223320312), we get a palindrome (436343634).

It can be divided in two parts, 2130 and 23322, that added together give a palindrome (25452).

The spelling of 213023322 in words is "two hundred thirteen million, twenty-three thousand, three hundred twenty-two".