320321300099 has 4 divisors (see below), whose sum is σ = 321364692264. Its totient is φ = 319277907936.

The previous prime is 320321300093. The next prime is 320321300119. The reversal of 320321300099 is 990003123023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990003123023 = 151 ⋅6556312073.

It is a cyclic number.

It is not a de Polignac number, because 320321300099 - 2⁸ = 320321299843 is a prime.

It is a super-2 number, since 2×320321300099² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320321300093) 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, 521695622 + ... + 521696235.

It is an arithmetic number, because the mean of its divisors is an integer number (80341173066).

Almost surely, 2^320321300099 is an apocalyptic number.

320321300099 is a deficient number, since it is larger than the sum of its proper divisors (1043392165).

320321300099 is a wasteful number, since it uses less digits than its factorization.

320321300099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043392164.

The product of its (nonzero) digits is 8748, while the sum is 32.

The spelling of 320321300099 in words is "three hundred twenty billion, three hundred twenty-one million, three hundred thousand, ninety-nine".