100001021230320 has 160 divisors (see below), whose sum is σ = 354354767843328. Its totient is φ = 22853154637824.

The previous prime is 100001021230309. The next prime is 100001021230339. The reversal of 100001021230320 is 23032120100001.

It is a super-2 number, since 2×100001021230320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100001021230320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3606337 + ... + 14594783.

Almost surely, 2^{100001021230320} is an apocalyptic number.

100001021230320 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 100001021230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177177383921664).

100001021230320 is an abundant number, since it is smaller than the sum of its proper divisors (254353746613008).

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

100001021230320 is a wasteful number, since it uses less digits than its factorization.

100001021230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993887 (or 10993881 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100001021230320 its reverse (23032120100001), we get a palindrome (123033141330321).

The spelling of 100001021230320 in words is "one hundred trillion, one billion, twenty-one million, two hundred thirty thousand, three hundred twenty".