21342024234242 has 8 divisors (see below), whose sum is σ = 32071561099536. Its totient is φ = 10651503867732.

The previous prime is 21342024234229. The next prime is 21342024234253. The reversal of 21342024234242 is 24243242024312.

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, 9754123328 + ... + 9754125515.

It is an arithmetic number, because the mean of its divisors is an integer number (4008945137442).

Almost surely, 2^{21342024234242} is an apocalyptic number.

21342024234242 is a deficient number, since it is larger than the sum of its proper divisors (10729536865294).

21342024234242 is a wasteful number, since it uses less digits than its factorization.

21342024234242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19508249392.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 21342024234242 its reverse (24243242024312), we get a palindrome (45585266258554).

The spelling of 21342024234242 in words is "twenty-one trillion, three hundred forty-two billion, twenty-four million, two hundred thirty-four thousand, two hundred forty-two".