213321443242 has 8 divisors (see below), whose sum is σ = 319992491232. Its totient is φ = 106657279500.

The previous prime is 213321443191. The next prime is 213321443263. The reversal of 213321443242 is 242344123312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642884 + ... + 1767967.

It is an arithmetic number, because the mean of its divisors is an integer number (39999061404).

Almost surely, 2^213321443242 is an apocalyptic number.

213321443242 is a deficient number, since it is larger than the sum of its proper divisors (106671047990).

213321443242 is a wasteful number, since it uses less digits than its factorization.

213321443242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442124.

The product of its digits is 27648, while the sum is 31.

Adding to 213321443242 its reverse (242344123312), we get a palindrome (455665566554).

The spelling of 213321443242 in words is "two hundred thirteen billion, three hundred twenty-one million, four hundred forty-three thousand, two hundred forty-two".