321401233 has 8 divisors (see below), whose sum is σ = 323791776. Its totient is φ = 319020000.

The previous prime is 321401209. The next prime is 321401251. The reversal of 321401233 is 332104123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321401233 is a prime.

It is a super-3 number, since 3×321401233³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321401233.

It is not an unprimeable number, because it can be changed into a prime (321401263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76518 + ... + 80608.

It is an arithmetic number, because the mean of its divisors is an integer number (40473972).

Almost surely, 2^321401233 is an apocalyptic number.

It is an amenable number.

321401233 is a deficient number, since it is larger than the sum of its proper divisors (2390543).

321401233 is a wasteful number, since it uses less digits than its factorization.

321401233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 321401233 is about 17927.6666914576. Note that the first 4 decimals coincide. The cubic root of 321401233 is about 684.9872894439.

Adding to 321401233 its reverse (332104123), we get a palindrome (653505356).

The spelling of 321401233 in words is "three hundred twenty-one million, four hundred one thousand, two hundred thirty-three".