100305305 has 8 divisors (see below), whose sum is σ = 124249344. Its totient is φ = 77655600.

The previous prime is 100305299. The next prime is 100305329. The reversal of 100305305 is 503503001.

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

It is not a de Polignac number, because 100305305 - 2²⁶ = 33196441 is a prime.

It is a super-2 number, since 2×100305305² = 20122308422286050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323411 + ... + 323720.

It is an arithmetic number, because the mean of its divisors is an integer number (15531168).

Almost surely, 2^100305305 is an apocalyptic number.

It is an amenable number.

100305305 is a deficient number, since it is larger than the sum of its proper divisors (23944039).

100305305 is an equidigital number, since it uses as much as digits as its factorization.

100305305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647167.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 100305305 is about 10015.2536163594. The cubic root of 100305305 is about 464.6307702148.

Adding to 100305305 its reverse (503503001), we get a palindrome (603808306).

The spelling of 100305305 in words is "one hundred million, three hundred five thousand, three hundred five".