321203130120 has 48 divisors (see below), whose sum is σ = 1043910174060. Its totient is φ = 85654167936.

The previous prime is 321203130067. The next prime is 321203130217. The reversal of 321203130120 is 21031302123.

321203130120 is a `hidden beast` number, since 321 + 20 + 3 + 1 + 301 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 276514015716 + 44689114404 = 525846^2 + 211398^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 321203130093 and 321203130102.

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 11 ways as a sum of consecutive naturals, for example, 446115099 + ... + 446115818.

Almost surely, 2^321203130120 is an apocalyptic number.

321203130120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321203130120 is an abundant number, since it is smaller than the sum of its proper divisors (722707043940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321203130120 is a wasteful number, since it uses less digits than its factorization.

321203130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892230934 (or 892230927 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 321203130120 its reverse (21031302123), we get a palindrome (342234432243).

The spelling of 321203130120 in words is "three hundred twenty-one billion, two hundred three million, one hundred thirty thousand, one hundred twenty".