213243133342 has 16 divisors (see below), whose sum is σ = 338751813312. Its totient is φ = 100328512000.

The previous prime is 213243133303. The next prime is 213243133357. The reversal of 213243133342 is 243331342312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498523 + ... + 821590.

It is an arithmetic number, because the mean of its divisors is an integer number (21171988332).

Almost surely, 2^213243133342 is an apocalyptic number.

213243133342 is a deficient number, since it is larger than the sum of its proper divisors (125508679970).

213243133342 is a wasteful number, since it uses less digits than its factorization.

213243133342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324883.

The product of its digits is 31104, while the sum is 31.

Adding to 213243133342 its reverse (243331342312), we get a palindrome (456574475654).

The spelling of 213243133342 in words is "two hundred thirteen billion, two hundred forty-three million, one hundred thirty-three thousand, three hundred forty-two".