100003321 has 8 divisors (see below), whose sum is σ = 109236384. Its totient is φ = 90793920.

The previous prime is 100003313. The next prime is 100003331. The reversal of 100003321 is 123300001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100003321 - 2³ = 100003313 is a prime.

It is a super-2 number, since 2×100003321² = 20001328422058082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100003298 and 100003307.

It is not an unprimeable number, because it can be changed into a prime (100003301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3601 + ... + 14593.

It is an arithmetic number, because the mean of its divisors is an integer number (13654548).

Almost surely, 2^100003321 is an apocalyptic number.

100003321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100003321 is a deficient number, since it is larger than the sum of its proper divisors (9233063).

100003321 is a wasteful number, since it uses less digits than its factorization.

100003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11831.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 100003321 is about 10000.1660486214. The cubic root of 100003321 is about 464.1640215432.

Adding to 100003321 its reverse (123300001), we get a palindrome (223303322).

The spelling of 100003321 in words is "one hundred million, three thousand, three hundred twenty-one".