21110230100320 has 24 divisors (see below), whose sum is σ = 49872918612384. Its totient is φ = 8444092040064.

The previous prime is 21110230100317. The next prime is 21110230100357. The reversal of 21110230100320 is 2300103201112.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 21110230100294 and 21110230100303.

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 3 ways as a sum of consecutive naturals, for example, 65969468904 + ... + 65969469223.

It is an arithmetic number, because the mean of its divisors is an integer number (2078038275516).

Almost surely, 2^{21110230100320} is an apocalyptic number.

21110230100320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21110230100320 is an abundant number, since it is smaller than the sum of its proper divisors (28762688512064).

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

21110230100320 is a wasteful number, since it uses less digits than its factorization.

21110230100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131938938142 (or 131938938134 counting only the distinct ones).

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

Adding to 21110230100320 its reverse (2300103201112), we get a palindrome (23410333301432).

The spelling of 21110230100320 in words is "twenty-one trillion, one hundred ten billion, two hundred thirty million, one hundred thousand, three hundred twenty".