321133412 has 12 divisors (see below), whose sum is σ = 570371760. Its totient is φ = 158170056.

The previous prime is 321133409. The next prime is 321133427. The reversal of 321133412 is 214331123.

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, 598862 + ... + 599397.

It is an arithmetic number, because the mean of its divisors is an integer number (47530980).

Almost surely, 2^321133412 is an apocalyptic number.

It is an amenable number.

321133412 is a deficient number, since it is larger than the sum of its proper divisors (249238348).

321133412 is a wasteful number, since it uses less digits than its factorization.

321133412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198330 (or 1198328 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 321133412 is about 17920.1956462534. The cubic root of 321133412 is about 684.7969718155.

Adding to 321133412 its reverse (214331123), we get a palindrome (535464535).

The spelling of 321133412 in words is "three hundred twenty-one million, one hundred thirty-three thousand, four hundred twelve".