320142099 has 4 divisors (see below), whose sum is σ = 426856136. Its totient is φ = 213428064.

The previous prime is 320142089. The next prime is 320142127. The reversal of 320142099 is 990241023.

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

It is not a de Polignac number, because 320142099 - 2⁷ = 320141971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320142089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53357014 + ... + 53357019.

It is an arithmetic number, because the mean of its divisors is an integer number (106714034).

Almost surely, 2^320142099 is an apocalyptic number.

320142099 is a deficient number, since it is larger than the sum of its proper divisors (106714037).

320142099 is a wasteful number, since it uses less digits than its factorization.

320142099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106714036.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 320142099 is about 17892.5151669630. The cubic root of 320142099 is about 684.0916078016.

The spelling of 320142099 in words is "three hundred twenty million, one hundred forty-two thousand, ninety-nine".