100023321232 has 60 divisors (see below), whose sum is σ = 204630252156. Its totient is φ = 47356657920.

The previous prime is 100023321199. The next prime is 100023321253. The reversal of 100023321232 is 232123320001.

It can be written as a sum of positive squares in 2 ways, for example, as 82050165136 + 17973156096 = 286444^2 + 134064^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

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 11 ways as a sum of consecutive naturals, for example, 22622382 + ... + 22626802.

Almost surely, 2^100023321232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100023321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102315126078).

100023321232 is an abundant number, since it is smaller than the sum of its proper divisors (104606930924).

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

100023321232 is a wasteful number, since it uses less digits than its factorization.

100023321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 100023321232 its reverse (232123320001), we get a palindrome (332146641233).

The spelling of 100023321232 in words is "one hundred billion, twenty-three million, three hundred twenty-one thousand, two hundred thirty-two".