331130312 has 8 divisors (see below), whose sum is σ = 620869350. Its totient is φ = 165565152.

The previous prime is 331130311. The next prime is 331130321. The reversal of 331130312 is 213031133.

331130312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 289476196 + 41654116 = 17014^2 + 6454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (331130311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20695637 + ... + 20695652.

Almost surely, 2^331130312 is an apocalyptic number.

It is an amenable number.

331130312 is a deficient number, since it is larger than the sum of its proper divisors (289739038).

331130312 is a wasteful number, since it uses less digits than its factorization.

331130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41391295 (or 41391291 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 331130312 is about 18196.9863438977. The cubic root of 331130312 is about 691.8304071689.

Adding to 331130312 its reverse (213031133), we get a palindrome (544161445).

The spelling of 331130312 in words is "three hundred thirty-one million, one hundred thirty thousand, three hundred twelve".