312100099 has 4 divisors (see below), whose sum is σ = 328526440. Its totient is φ = 295673760.

The previous prime is 312100097. The next prime is 312100109. The reversal of 312100099 is 990001213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312100099 - 2¹ = 312100097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312100097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8213142 + ... + 8213179.

It is an arithmetic number, because the mean of its divisors is an integer number (82131610).

Almost surely, 2^312100099 is an apocalyptic number.

312100099 is a deficient number, since it is larger than the sum of its proper divisors (16426341).

312100099 is a wasteful number, since it uses less digits than its factorization.

312100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16426340.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 312100099 is about 17666.3550003955. The cubic root of 312100099 is about 678.3148143674.

The spelling of 312100099 in words is "three hundred twelve million, one hundred thousand, ninety-nine".