331244012 has 12 divisors (see below), whose sum is σ = 632375016. Its totient is φ = 150565440.

The previous prime is 331244009. The next prime is 331244033. The reversal of 331244012 is 210442133.

It is a super-2 number, since 2×331244012² = 219445190971712288, which contains 22 as substring.

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, 3764093 + ... + 3764180.

It is an arithmetic number, because the mean of its divisors is an integer number (52697918).

Almost surely, 2^331244012 is an apocalyptic number.

It is an amenable number.

331244012 is a deficient number, since it is larger than the sum of its proper divisors (301131004).

331244012 is a wasteful number, since it uses less digits than its factorization.

331244012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528288 (or 7528286 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 331244012 is about 18200.1102194465. The cubic root of 331244012 is about 691.9095825598.

Adding to 331244012 its reverse (210442133), we get a palindrome (541686145).

The spelling of 331244012 in words is "three hundred thirty-one million, two hundred forty-four thousand, twelve".