213021433342 has 4 divisors (see below), whose sum is σ = 319532150016. Its totient is φ = 106510716670.

The previous prime is 213021433337. The next prime is 213021433351. The reversal of 213021433342 is 243334120312.

It is a happy number.

213021433342 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 is a self number, because there is not a number n which added to its sum of digits gives 213021433342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53255358334 + ... + 53255358337.

It is an arithmetic number, because the mean of its divisors is an integer number (79883037504).

Almost surely, 2^213021433342 is an apocalyptic number.

213021433342 is a deficient number, since it is larger than the sum of its proper divisors (106510716674).

213021433342 is a wasteful number, since it uses less digits than its factorization.

213021433342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106510716673.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213021433342 its reverse (243334120312), we get a palindrome (456355553654).

The spelling of 213021433342 in words is "two hundred thirteen billion, twenty-one million, four hundred thirty-three thousand, three hundred forty-two".