320230000121 has 4 divisors (see below), whose sum is σ = 323828090100. Its totient is φ = 316631910144.

The previous prime is 320230000117. The next prime is 320230000183. The reversal of 320230000121 is 121000032023.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 228545188096 + 91684812025 = 478064^2 + 302795^2 .

It is a cyclic number.

It is not a de Polignac number, because 320230000121 - 2² = 320230000117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320230000096 and 320230000105.

It is not an unprimeable number, because it can be changed into a prime (320230000721) 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 3 ways as a sum of consecutive naturals, for example, 1799044856 + ... + 1799045033.

It is an arithmetic number, because the mean of its divisors is an integer number (80957022525).

Almost surely, 2^320230000121 is an apocalyptic number.

It is an amenable number.

320230000121 is a deficient number, since it is larger than the sum of its proper divisors (3598089979).

320230000121 is an equidigital number, since it uses as much as digits as its factorization.

320230000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598089978.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 320230000121 its reverse (121000032023), we get a palindrome (441230032144).

The spelling of 320230000121 in words is "three hundred twenty billion, two hundred thirty million, one hundred twenty-one", and thus it is an aban number.