331002012 has 48 divisors (see below), whose sum is σ = 860493312. Its totient is φ = 98167680.

The previous prime is 331002011. The next prime is 331002031. The reversal of 331002012 is 210200133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331002011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20473 + ... + 32880.

It is an arithmetic number, because the mean of its divisors is an integer number (17926944).

Almost surely, 2^331002012 is an apocalyptic number.

It is an amenable number.

331002012 is an abundant number, since it is smaller than the sum of its proper divisors (529491300).

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

331002012 is a wasteful number, since it uses less digits than its factorization.

331002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53418 (or 53416 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 331002012 is about 18193.4606933370. The cubic root of 331002012 is about 691.7410432494.

Adding to 331002012 its reverse (210200133), we get a palindrome (541202145).

The spelling of 331002012 in words is "three hundred thirty-one million, two thousand, twelve".