100323003018 has 128 divisors (see below), whose sum is σ = 241165836288. Its totient is φ = 27226450944.

The previous prime is 100323002971. The next prime is 100323003019. The reversal of 100323003018 is 810300323001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100323002985 and 100323003003.

It is not an unprimeable number, because it can be changed into a prime (100323003019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11761071 + ... + 11769597.

It is an arithmetic number, because the mean of its divisors is an integer number (1884108096).

Almost surely, 2^100323003018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100323003018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120582918144).

100323003018 is an abundant number, since it is smaller than the sum of its proper divisors (140842833270).

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

100323003018 is a wasteful number, since it uses less digits than its factorization.

100323003018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 100323003018 its reverse (810300323001), we get a palindrome (910623326019).

The spelling of 100323003018 in words is "one hundred billion, three hundred twenty-three million, three thousand, eighteen".