21342102302 has 16 divisors (see below), whose sum is σ = 32137841232. Its totient is φ = 10629514560.

The previous prime is 21342102259. The next prime is 21342102337. The reversal of 21342102302 is 20320124312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2686328 + ... + 2694260.

It is an arithmetic number, because the mean of its divisors is an integer number (2008615077).

Almost surely, 2^21342102302 is an apocalyptic number.

21342102302 is a deficient number, since it is larger than the sum of its proper divisors (10795738930).

21342102302 is a wasteful number, since it uses less digits than its factorization.

21342102302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13003.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21342102302 its reverse (20320124312), we get a palindrome (41662226614).

The spelling of 21342102302 in words is "twenty-one billion, three hundred forty-two million, one hundred two thousand, three hundred two".