213322434243 has 16 divisors (see below), whose sum is σ = 288726912000. Its totient is φ = 140067218016.

The previous prime is 213322434229. The next prime is 213322434253. The reversal of 213322434243 is 342434223312.

It is not a de Polignac number, because 213322434243 - 2⁶ = 213322434179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213322434253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063246 + ... + 1247852.

It is an arithmetic number, because the mean of its divisors is an integer number (18045432000).

Almost surely, 2^213322434243 is an apocalyptic number.

213322434243 is a deficient number, since it is larger than the sum of its proper divisors (75404477757).

213322434243 is a wasteful number, since it uses less digits than its factorization.

213322434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190426.

The product of its digits is 82944, while the sum is 33.

Adding to 213322434243 its reverse (342434223312), we get a palindrome (555756657555).

The spelling of 213322434243 in words is "two hundred thirteen billion, three hundred twenty-two million, four hundred thirty-four thousand, two hundred forty-three".