321223033231 has 8 divisors (see below), whose sum is σ = 340143874560. Its totient is φ = 302305010688.

The previous prime is 321223033177. The next prime is 321223033301. The reversal of 321223033231 is 132330322123.

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-321223033231 is a prime.

It is a super-2 number, since 2×321223033231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321223033196 and 321223033205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321223033331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467791 + ... + 928048.

It is an arithmetic number, because the mean of its divisors is an integer number (42517984320).

Almost surely, 2^321223033231 is an apocalyptic number.

321223033231 is a deficient number, since it is larger than the sum of its proper divisors (18920841329).

321223033231 is a wasteful number, since it uses less digits than its factorization.

321223033231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409393.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 321223033231 its reverse (132330322123), we get a palindrome (453553355354).

The spelling of 321223033231 in words is "three hundred twenty-one billion, two hundred twenty-three million, thirty-three thousand, two hundred thirty-one".