321043412 has 6 divisors (see below), whose sum is σ = 561825978. Its totient is φ = 160521704.

The previous prime is 321043397. The next prime is 321043421. The reversal of 321043412 is 214340123.

It can be written as a sum of positive squares in only one way, i.e., 180526096 + 140517316 = 13436^2 + 11854^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40130423 + ... + 40130430.

It is an arithmetic number, because the mean of its divisors is an integer number (93637663).

Almost surely, 2^321043412 is an apocalyptic number.

It is an amenable number.

321043412 is a deficient number, since it is larger than the sum of its proper divisors (240782566).

321043412 is a wasteful number, since it uses less digits than its factorization.

321043412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80260857 (or 80260855 counting only the distinct ones).

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

The square root of 321043412 is about 17917.6843369895. The cubic root of 321043412 is about 684.7329927094.

Adding to 321043412 its reverse (214340123), we get a palindrome (535383535).

The spelling of 321043412 in words is "three hundred twenty-one million, forty-three thousand, four hundred twelve".