21313330320009 has 16 divisors (see below), whose sum is σ = 34975721551232. Its totient is φ = 11242196212608.

The previous prime is 21313330319923. The next prime is 21313330320097. The reversal of 21313330320009 is 90002303331312.

It is not a de Polignac number, because 21313330320009 - 2²⁰ = 21313329271433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21313330340009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39035403244 + ... + 39035403789.

It is an arithmetic number, because the mean of its divisors is an integer number (2185982596952).

Almost surely, 2^{21313330320009} is an apocalyptic number.

It is an amenable number.

21313330320009 is a deficient number, since it is larger than the sum of its proper divisors (13662391231223).

21313330320009 is a wasteful number, since it uses less digits than its factorization.

21313330320009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78070807056.

The product of its (nonzero) digits is 8748, while the sum is 30.

The spelling of 21313330320009 in words is "twenty-one trillion, three hundred thirteen billion, three hundred thirty million, three hundred twenty thousand, nine".