321200331231 has 8 divisors (see below), whose sum is σ = 461210732080. Its totient is φ = 197661742272.

The previous prime is 321200331223. The next prime is 321200331233. The reversal of 321200331231 is 132133002123.

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

It is not a de Polignac number, because 321200331231 - 2³ = 321200331223 is a prime.

It is a super-2 number, since 2×321200331231² (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 = 321200331198 and 321200331207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321200331233) 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, 4117952926 + ... + 4117953003.

It is an arithmetic number, because the mean of its divisors is an integer number (57651341510).

Almost surely, 2^321200331231 is an apocalyptic number.

321200331231 is a deficient number, since it is larger than the sum of its proper divisors (140010400849).

321200331231 is a wasteful number, since it uses less digits than its factorization.

321200331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235905945.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 321200331231 its reverse (132133002123), we get a palindrome (453333333354).

The spelling of 321200331231 in words is "three hundred twenty-one billion, two hundred million, three hundred thirty-one thousand, two hundred thirty-one".