100002321 has 24 divisors (see below), whose sum is σ = 154417536. Its totient is φ = 62208960.

The previous prime is 100002289. The next prime is 100002337. The reversal of 100002321 is 123200001.

It is a happy number.

It is not a de Polignac number, because 100002321 - 2⁵ = 100002289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100002421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2596 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (6434064).

Almost surely, 2^100002321 is an apocalyptic number.

It is an amenable number.

100002321 is a deficient number, since it is larger than the sum of its proper divisors (54415215).

100002321 is a wasteful number, since it uses less digits than its factorization.

100002321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11853 (or 11850 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100002321 is about 10000.1160493266. The cubic root of 100002321 is about 464.1624743761.

Adding to 100002321 its reverse (123200001), we get a palindrome (223202322).

It can be divided in two parts, 10000 and 2321, that added together give a palindrome (12321).

The spelling of 100002321 in words is "one hundred million, two thousand, three hundred twenty-one".