320140019999 has 4 divisors (see below), whose sum is σ = 320146486680. Its totient is φ = 320133553320.

The previous prime is 320140019987. The next prime is 320140020019. The reversal of 320140019999 is 999910041023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999910041023 = 29 ⋅34479656587.

It is a cyclic number.

It is not a de Polignac number, because 320140019999 - 2²⁰ = 320138971423 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 (320140019299) 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, 3158504 + ... + 3258285.

It is an arithmetic number, because the mean of its divisors is an integer number (80036621670).

Almost surely, 2^320140019999 is an apocalyptic number.

320140019999 is a deficient number, since it is larger than the sum of its proper divisors (6466681).

320140019999 is an equidigital number, since it uses as much as digits as its factorization.

320140019999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466680.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 320140019999 in words is "three hundred twenty billion, one hundred forty million, nineteen thousand, nine hundred ninety-nine".