311200330120 has 16 divisors (see below), whose sum is σ = 700200742860. Its totient is φ = 124480132032.

The previous prime is 311200330081. The next prime is 311200330127. The reversal of 311200330120 is 21033002113.

It can be written as a sum of positive squares in 2 ways, for example, as 278157088836 + 33043241284 = 527406^2 + 181778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311200330094 and 311200330103.

It is not an unprimeable number, because it can be changed into a prime (311200330127) by changing a digit.

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, 3890004087 + ... + 3890004166.

Almost surely, 2^311200330120 is an apocalyptic number.

It is an amenable number.

311200330120 is an abundant number, since it is smaller than the sum of its proper divisors (389000412740).

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

311200330120 is a wasteful number, since it uses less digits than its factorization.

311200330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780008264 (or 7780008260 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 311200330120 its reverse (21033002113), we get a palindrome (332233332233).

The spelling of 311200330120 in words is "three hundred eleven billion, two hundred million, three hundred thirty thousand, one hundred twenty".