20010323320 has 96 divisors (see below), whose sum is σ = 49791049920. Its totient is φ = 7231111680.

The previous prime is 20010323317. The next prime is 20010323353. The reversal of 20010323320 is 2332301002.

It is a junction number, because it is equal to n+sod(n) for n = 20010323294 and 20010323303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286230 + ... + 349210.

It is an arithmetic number, because the mean of its divisors is an integer number (518656770).

Almost surely, 2^20010323320 is an apocalyptic number.

20010323320 is a gapful number since it is divisible by the number (20) 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 20010323320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24895524960).

20010323320 is an abundant number, since it is smaller than the sum of its proper divisors (29780726600).

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

20010323320 is a wasteful number, since it uses less digits than its factorization.

20010323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63065 (or 63048 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20010323320 its reverse (2332301002), we get a palindrome (22342624322).

The spelling of 20010323320 in words is "twenty billion, ten million, three hundred twenty-three thousand, three hundred twenty".