331204312 has 16 divisors (see below), whose sum is σ = 621729360. Its totient is φ = 165409824.

The previous prime is 331204309. The next prime is 331204327. The reversal of 331204312 is 213402133.

It is a self number, because there is not a number n which added to its sum of digits gives 331204312.

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, 16588 + ... + 30619.

It is an arithmetic number, because the mean of its divisors is an integer number (38858085).

Almost surely, 2^331204312 is an apocalyptic number.

It is an amenable number.

331204312 is a deficient number, since it is larger than the sum of its proper divisors (290525048).

331204312 is a wasteful number, since it uses less digits than its factorization.

331204312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48090 (or 48086 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 331204312 is about 18199.0195340298. The cubic root of 331204312 is about 691.8819393855.

Adding to 331204312 its reverse (213402133), we get a palindrome (544606445).

The spelling of 331204312 in words is "three hundred thirty-one million, two hundred four thousand, three hundred twelve".