21102320096 has 96 divisors (see below), whose sum is σ = 49496541696. Its totient is φ = 8729280000.

The previous prime is 21102320087. The next prime is 21102320101. The reversal of 21102320096 is 69002320112.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292421 + ... + 357371.

It is an arithmetic number, because the mean of its divisors is an integer number (515588976).

Almost surely, 2^21102320096 is an apocalyptic number.

21102320096 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21102320096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24748270848).

21102320096 is an abundant number, since it is smaller than the sum of its proper divisors (28394221600).

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

21102320096 is a wasteful number, since it uses less digits than its factorization.

21102320096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65056 (or 65048 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 21102320096 in words is "twenty-one billion, one hundred two million, three hundred twenty thousand, ninety-six".