21432324302 has 16 divisors (see below), whose sum is σ = 32325460992. Its totient is φ = 10657201080.

The previous prime is 21432324271. The next prime is 21432324313. The reversal of 21432324302 is 20342323412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634413 + ... + 2642535.

It is an arithmetic number, because the mean of its divisors is an integer number (2020341312).

Almost surely, 2^21432324302 is an apocalyptic number.

21432324302 is a deficient number, since it is larger than the sum of its proper divisors (10893136690).

21432324302 is a wasteful number, since it uses less digits than its factorization.

21432324302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 21432324302 its reverse (20342323412), we get a palindrome (41774647714).

The spelling of 21432324302 in words is "twenty-one billion, four hundred thirty-two million, three hundred twenty-four thousand, three hundred two".