100319999 has 16 divisors (see below), whose sum is σ = 112815360. Its totient is φ = 88577280.

The previous prime is 100319993. The next prime is 100320007. The reversal of 100319999 is 999913001.

It is a cyclic number.

It is not a de Polignac number, because 100319999 - 2²⁴ = 83542783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100319993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34469 + ... + 37265.

It is an arithmetic number, because the mean of its divisors is an integer number (7050960).

Almost surely, 2^100319999 is an apocalyptic number.

100319999 is a deficient number, since it is larger than the sum of its proper divisors (12495361).

100319999 is a wasteful number, since it uses less digits than its factorization.

100319999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930.

The product of its (nonzero) digits is 19683, while the sum is 41.

The square root of 100319999 is about 10015.9871705189. The cubic root of 100319999 is about 464.6534574535.

The spelling of 100319999 in words is "one hundred million, three hundred nineteen thousand, nine hundred ninety-nine".