331002120312 has 48 divisors (see below), whose sum is σ = 925382278080. Its totient is φ = 106774876800.

The previous prime is 331002120307. The next prime is 331002120329. The reversal of 331002120312 is 213021200133.

331002120312 is a `hidden beast` number, since 3 + 310 + 0 + 21 + 20 + 312 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74146989 + ... + 74151452.

It is an arithmetic number, because the mean of its divisors is an integer number (19278797460).

Almost surely, 2^331002120312 is an apocalyptic number.

It is an amenable number.

331002120312 is an abundant number, since it is smaller than the sum of its proper divisors (594380157768).

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

331002120312 is a wasteful number, since it uses less digits than its factorization.

331002120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148298484 (or 148298477 counting only the distinct ones).

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

Adding to 331002120312 its reverse (213021200133), we get a palindrome (544023320445).

It can be divided in two parts, 3310021 and 20312, that added together give a palindrome (3330333).

The spelling of 331002120312 in words is "three hundred thirty-one billion, two million, one hundred twenty thousand, three hundred twelve".