21310330310112 has 96 divisors (see below), whose sum is σ = 56095316121600. Its totient is φ = 7083692748288.

The previous prime is 21310330310089. The next prime is 21310330310153. The reversal of 21310330310112 is 21101303301312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66378714 + ... + 66698982.

It is an arithmetic number, because the mean of its divisors is an integer number (584326209600).

Almost surely, 2^{21310330310112} is an apocalyptic number.

It is an amenable number.

21310330310112 is an abundant number, since it is smaller than the sum of its proper divisors (34784985811488).

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

21310330310112 is a wasteful number, since it uses less digits than its factorization.

21310330310112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322208 (or 322200 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21310330310112 its reverse (21101303301312), we get a palindrome (42411633611424).

The spelling of 21310330310112 in words is "twenty-one trillion, three hundred ten billion, three hundred thirty million, three hundred ten thousand, one hundred twelve".