100021130320 has 40 divisors (see below), whose sum is σ = 232565829120. Its totient is φ = 40005578880.

The previous prime is 100021130273. The next prime is 100021130327. The reversal of 100021130320 is 23031120001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 100021130320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021130327) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1342201 + ... + 1414759.

It is an arithmetic number, because the mean of its divisors is an integer number (5814145728).

Almost surely, 2^100021130320 is an apocalyptic number.

100021130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021130320 is an abundant number, since it is smaller than the sum of its proper divisors (132544698800).

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

100021130320 is a wasteful number, since it uses less digits than its factorization.

100021130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89803 (or 89797 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100021130320 its reverse (23031120001), we get a palindrome (123052250321).

The spelling of 100021130320 in words is "one hundred billion, twenty-one million, one hundred thirty thousand, three hundred twenty".