20211310032320 has 56 divisors (see below), whose sum is σ = 52503471297648. Its totient is φ = 7349567283200.

The previous prime is 20211310032307. The next prime is 20211310032391. The reversal of 20211310032320 is 2323001311202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20211310032292 and 20211310032301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870921201 + ... + 2870928240.

It is an arithmetic number, because the mean of its divisors is an integer number (937561987458).

Almost surely, 2^{20211310032320} is an apocalyptic number.

20211310032320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211310032320 is an abundant number, since it is smaller than the sum of its proper divisors (32292161265328).

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

20211310032320 is a wasteful number, since it uses less digits than its factorization.

20211310032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5741849469 (or 5741849459 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20211310032320 its reverse (2323001311202), we get a palindrome (22534311343522).

The spelling of 20211310032320 in words is "twenty trillion, two hundred eleven billion, three hundred ten million, thirty-two thousand, three hundred twenty".