213243235122 has 16 divisors (see below), whose sum is σ = 426492565632. Its totient is φ = 71080062480.

The previous prime is 213243235109. The next prime is 213243235133. The reversal of 213243235122 is 221532342312.

213243235122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213243235122.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 290668 + ... + 714824.

It is an arithmetic number, because the mean of its divisors is an integer number (26655785352).

Almost surely, 2^213243235122 is an apocalyptic number.

213243235122 is an abundant number, since it is smaller than the sum of its proper divisors (213249330510).

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

213243235122 is a wasteful number, since it uses less digits than its factorization.

213243235122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507953.

The product of its digits is 17280, while the sum is 30.

Adding to 213243235122 its reverse (221532342312), we get a palindrome (434775577434).

The spelling of 213243235122 in words is "two hundred thirteen billion, two hundred forty-three million, two hundred thirty-five thousand, one hundred twenty-two".