21334343230342 has 16 divisors (see below), whose sum is σ = 33686031942000. Its totient is φ = 10105673477760.

The previous prime is 21334343230267. The next prime is 21334343230351. The reversal of 21334343230342 is 24303234343312.

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, 4071034 + ... + 7696882.

It is an arithmetic number, because the mean of its divisors is an integer number (2105376996375).

Almost surely, 2^{21334343230342} is an apocalyptic number.

21334343230342 is a deficient number, since it is larger than the sum of its proper divisors (12351688711658).

21334343230342 is a wasteful number, since it uses less digits than its factorization.

21334343230342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780711.

The product of its (nonzero) digits is 373248, while the sum is 37.

Adding to 21334343230342 its reverse (24303234343312), we get a palindrome (45637577573654).

The spelling of 21334343230342 in words is "twenty-one trillion, three hundred thirty-four billion, three hundred forty-three million, two hundred thirty thousand, three hundred forty-two".