21233341342 has 16 divisors (see below), whose sum is σ = 33241790880. Its totient is φ = 10152938752.

The previous prime is 21233341331. The next prime is 21233341357. The reversal of 21233341342 is 24314333212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21233341342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184338 + ... + 276490.

It is an arithmetic number, because the mean of its divisors is an integer number (2077611930).

Almost surely, 2^21233341342 is an apocalyptic number.

21233341342 is a deficient number, since it is larger than the sum of its proper divisors (12008449538).

21233341342 is a wasteful number, since it uses less digits than its factorization.

21233341342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97187.

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

Adding to 21233341342 its reverse (24314333212), we get a palindrome (45547674554).

The spelling of 21233341342 in words is "twenty-one billion, two hundred thirty-three million, three hundred forty-one thousand, three hundred forty-two".