331142312 has 16 divisors (see below), whose sum is σ = 635331840. Its totient is φ = 161720496.

The previous prime is 331142311. The next prime is 331142323. The reversal of 331142312 is 213241133.

It is not an unprimeable number, because it can be changed into a prime (331142311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480968 + ... + 481655.

It is an arithmetic number, because the mean of its divisors is an integer number (39708240).

Almost surely, 2^331142312 is an apocalyptic number.

It is an amenable number.

331142312 is a deficient number, since it is larger than the sum of its proper divisors (304189528).

331142312 is a wasteful number, since it uses less digits than its factorization.

331142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962672 (or 962668 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 331142312 is about 18197.3160658378. The cubic root of 331142312 is about 691.8387642661.

Adding to 331142312 its reverse (213241133), we get a palindrome (544383445).

The spelling of 331142312 in words is "three hundred thirty-one million, one hundred forty-two thousand, three hundred twelve".