213520312322 has 4 divisors (see below), whose sum is σ = 320280468486. Its totient is φ = 106760156160.

The previous prime is 213520312321. The next prime is 213520312391. The reversal of 213520312322 is 223213025312.

213520312322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 195823065361 + 17697246961 = 442519^2 + 133031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213520312291 and 213520312300.

It is not an unprimeable number, because it can be changed into a prime (213520312321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53380078079 + ... + 53380078082.

Almost surely, 2^213520312322 is an apocalyptic number.

213520312322 is a deficient number, since it is larger than the sum of its proper divisors (106760156164).

213520312322 is a wasteful number, since it uses less digits than its factorization.

213520312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106760156163.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 213520312322 its reverse (223213025312), we get a palindrome (436733337634).

The spelling of 213520312322 in words is "two hundred thirteen billion, five hundred twenty million, three hundred twelve thousand, three hundred twenty-two".