320030121212 has 12 divisors (see below), whose sum is σ = 560655574080. Its totient is φ = 159842814336.

The previous prime is 320030121181. The next prime is 320030121223. The reversal of 320030121212 is 212121030023.

It is a super-3 number, since 3×320030121212³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43057388 + ... + 43064819.

It is an arithmetic number, because the mean of its divisors is an integer number (46721297840).

Almost surely, 2^320030121212 is an apocalyptic number.

It is an amenable number.

320030121212 is a deficient number, since it is larger than the sum of its proper divisors (240625452868).

320030121212 is a wasteful number, since it uses less digits than its factorization.

320030121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86123140 (or 86123138 counting only the distinct ones).

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

Adding to 320030121212 its reverse (212121030023), we get a palindrome (532151151235).

The spelling of 320030121212 in words is "three hundred twenty billion, thirty million, one hundred twenty-one thousand, two hundred twelve".