321031412 has 24 divisors (see below), whose sum is σ = 624540672. Its totient is φ = 143388000.

The previous prime is 321031411. The next prime is 321031423. The reversal of 321031412 is 214130123.

It is a super-2 number, since 2×321031412² = 206122334981427488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321031411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97964 + ... + 101187.

It is an arithmetic number, because the mean of its divisors is an integer number (26022528).

Almost surely, 2^321031412 is an apocalyptic number.

It is an amenable number.

321031412 is a deficient number, since it is larger than the sum of its proper divisors (303509260).

321031412 is a wasteful number, since it uses less digits than its factorization.

321031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199199 (or 199197 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 321031412 is about 17917.3494691598. The cubic root of 321031412 is about 684.7244612585.

Adding to 321031412 its reverse (214130123), we get a palindrome (535161535).

The spelling of 321031412 in words is "three hundred twenty-one million, thirty-one thousand, four hundred twelve".