321214331231 has 8 divisors (see below), whose sum is σ = 328074706944. Its totient is φ = 314355040120.

The previous prime is 321214331209. The next prime is 321214331233. The reversal of 321214331231 is 132133412123.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 321214331231 - 2¹⁴ = 321214314847 is a prime.

It is a super-2 number, since 2×321214331231² (a number of 24 digits) contains 22 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 321214331231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321214331233) 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, 342146 + ... + 871488.

It is an arithmetic number, because the mean of its divisors is an integer number (41009338368).

Almost surely, 2^321214331231 is an apocalyptic number.

321214331231 is a deficient number, since it is larger than the sum of its proper divisors (6860375713).

321214331231 is a wasteful number, since it uses less digits than its factorization.

321214331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542301.

The product of its digits is 2592, while the sum is 26.

Adding to 321214331231 its reverse (132133412123), we get a palindrome (453347743354).

The spelling of 321214331231 in words is "three hundred twenty-one billion, two hundred fourteen million, three hundred thirty-one thousand, two hundred thirty-one".