100021020330 has 128 divisors (see below), whose sum is σ = 299380561920. Its totient is φ = 20776861440.

The previous prime is 100021020247. The next prime is 100021020347. The reversal of 100021020330 is 33020120001.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10614361 + ... + 10623779.

It is an arithmetic number, because the mean of its divisors is an integer number (2338910640).

Almost surely, 2^100021020330 is an apocalyptic number.

100021020330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100021020330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149690280960).

100021020330 is an abundant number, since it is smaller than the sum of its proper divisors (199359541590).

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

100021020330 is a wasteful number, since it uses less digits than its factorization.

100021020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14044.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 100021020330 its reverse (33020120001), we get a palindrome (133041140331).

The spelling of 100021020330 in words is "one hundred billion, twenty-one million, twenty thousand, three hundred thirty".