321151211231 has 8 divisors (see below), whose sum is σ = 321420714000. Its totient is φ = 320881783680.

The previous prime is 321151211207. The next prime is 321151211233. The reversal of 321151211231 is 132112151123.

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-321151211231 is a prime.

It is a super-2 number, since 2×321151211231² (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 = 321151211197 and 321151211206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321151211233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11226176 + ... + 11254746.

It is an arithmetic number, because the mean of its divisors is an integer number (40177589250).

Almost surely, 2^321151211231 is an apocalyptic number.

321151211231 is a deficient number, since it is larger than the sum of its proper divisors (269502769).

321151211231 is a wasteful number, since it uses less digits than its factorization.

321151211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37609.

The product of its digits is 360, while the sum is 23.

Adding to 321151211231 its reverse (132112151123), we get a palindrome (453263362354).

The spelling of 321151211231 in words is "three hundred twenty-one billion, one hundred fifty-one million, two hundred eleven thousand, two hundred thirty-one".