21331320003102 has 16 divisors (see below), whose sum is σ = 43815684331152. Its totient is φ = 6918265946880.

The previous prime is 21331320003079. The next prime is 21331320003121. The reversal of 21331320003102 is 20130002313312.

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, 48043513299 + ... + 48043513742.

It is an arithmetic number, because the mean of its divisors is an integer number (2738480270697).

Almost surely, 2^{21331320003102} is an apocalyptic number.

21331320003102 is an abundant number, since it is smaller than the sum of its proper divisors (22484364328050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21331320003102 is a wasteful number, since it uses less digits than its factorization.

21331320003102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96087027083.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21331320003102 its reverse (20130002313312), we get a palindrome (41461322316414).

The spelling of 21331320003102 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred twenty million, three thousand, one hundred two".