21321101302 has 8 divisors (see below), whose sum is σ = 32211736200. Its totient is φ = 10583855904.

The previous prime is 21321101273. The next prime is 21321101309. The reversal of 21321101302 is 20310112312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21321101309) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38347027 + ... + 38347582.

It is an arithmetic number, because the mean of its divisors is an integer number (4026467025).

Almost surely, 2^21321101302 is an apocalyptic number.

21321101302 is a deficient number, since it is larger than the sum of its proper divisors (10890634898).

21321101302 is a wasteful number, since it uses less digits than its factorization.

21321101302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76694750.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21321101302 its reverse (20310112312), we get a palindrome (41631213614).

The spelling of 21321101302 in words is "twenty-one billion, three hundred twenty-one million, one hundred one thousand, three hundred two".