100323320011020 has 144 divisors (see below), whose sum is σ = 317623595889600. Its totient is φ = 25583392124928.

The previous prime is 100323320011007. The next prime is 100323320011021. The reversal of 100323320011020 is 20110023323001.

100323320011020 is a `hidden beast` number, since 1 + 0 + 0 + 323 + 320 + 0 + 1 + 1 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100323320010984 and 100323320011002.

It is not an unprimeable number, because it can be changed into a prime (100323320011021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13770432 + ... + 19755288.

It is an arithmetic number, because the mean of its divisors is an integer number (2205719415900).

Almost surely, 2^{100323320011020} is an apocalyptic number.

100323320011020 is a gapful number since it is divisible by the number (10) 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 100323320011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158811797944800).

100323320011020 is an abundant number, since it is smaller than the sum of its proper divisors (217300275878580).

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

100323320011020 is a wasteful number, since it uses less digits than its factorization.

100323320011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988944 (or 5988939 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 100323320011020 its reverse (20110023323001), we get a palindrome (120433343334021).

The spelling of 100323320011020 in words is "one hundred trillion, three hundred twenty-three billion, three hundred twenty million, eleven thousand, twenty".