321200121331 has 8 divisors (see below), whose sum is σ = 323169606144. Its totient is φ = 319236305160.

The previous prime is 321200121289. The next prime is 321200121367. The reversal of 321200121331 is 133121002123.

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 321200121331 - 2¹¹ = 321200119283 is a prime.

It is a super-2 number, since 2×321200121331² (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 = 321200121299 and 321200121308.

It is not an unprimeable number, because it can be changed into a prime (321200121371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1303461 + ... + 1530166.

It is an arithmetic number, because the mean of its divisors is an integer number (40396200768).

Almost surely, 2^321200121331 is an apocalyptic number.

321200121331 is a deficient number, since it is larger than the sum of its proper divisors (1969484813).

321200121331 is a wasteful number, since it uses less digits than its factorization.

321200121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834321.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321200121331 its reverse (133121002123), we get a palindrome (454321123454).

The spelling of 321200121331 in words is "three hundred twenty-one billion, two hundred million, one hundred twenty-one thousand, three hundred thirty-one".