320021121230 has 16 divisors (see below), whose sum is σ = 576054967104. Its totient is φ = 128004682080.

The previous prime is 320021121227. The next prime is 320021121293. The reversal of 320021121230 is 32121120023.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 320021121199 and 320021121208.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 100037 + ... + 806256.

It is an arithmetic number, because the mean of its divisors is an integer number (36003435444).

Almost surely, 2^320021121230 is an apocalyptic number.

320021121230 is a deficient number, since it is larger than the sum of its proper divisors (256033845874).

320021121230 is a wasteful number, since it uses less digits than its factorization.

320021121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941611.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 320021121230 its reverse (32121120023), we get a palindrome (352142241253).

The spelling of 320021121230 in words is "three hundred twenty billion, twenty-one million, one hundred twenty-one thousand, two hundred thirty".