331025012 has 12 divisors (see below), whose sum is σ = 579435780. Its totient is φ = 165471936.

The previous prime is 331024963. The next prime is 331025027. The reversal of 331025012 is 210520133.

It can be written as a sum of positive squares in 2 ways, for example, as 45212176 + 285812836 = 6724^2 + 16906^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15314 + ... + 29942.

It is an arithmetic number, because the mean of its divisors is an integer number (48286315).

Almost surely, 2^331025012 is an apocalyptic number.

It is an amenable number.

331025012 is a deficient number, since it is larger than the sum of its proper divisors (248410768).

331025012 is a wasteful number, since it uses less digits than its factorization.

331025012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290 (or 20288 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 331025012 is about 18194.0927776023. The cubic root of 331025012 is about 691.7570649803.

Adding to 331025012 its reverse (210520133), we get a palindrome (541545145).

The spelling of 331025012 in words is "three hundred thirty-one million, twenty-five thousand, twelve".