331226312 has 32 divisors (see below), whose sum is σ = 649252800. Its totient is φ = 158119104.

The previous prime is 331226299. The next prime is 331226321. The reversal of 331226312 is 213622133.

It is a super-2 number, since 2×331226312² = 219421739522242688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123239 + ... + 125897.

It is an arithmetic number, because the mean of its divisors is an integer number (20289150).

Almost surely, 2^331226312 is an apocalyptic number.

It is an amenable number.

331226312 is a deficient number, since it is larger than the sum of its proper divisors (318026488).

331226312 is a wasteful number, since it uses less digits than its factorization.

331226312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365 (or 3361 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 331226312 is about 18199.6239521590. The cubic root of 331226312 is about 691.8972582940.

Adding to 331226312 its reverse (213622133), we get a palindrome (544848445).

The spelling of 331226312 in words is "three hundred thirty-one million, two hundred twenty-six thousand, three hundred twelve".