321331131211 has 8 divisors (see below), whose sum is σ = 326136846800. Its totient is φ = 316525701888.

The previous prime is 321331131197. The next prime is 321331131221. The reversal of 321331131211 is 112131133123.

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 321331131211 - 2¹³ = 321331123019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321331131221) 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, 3547615 + ... + 3637063.

It is an arithmetic number, because the mean of its divisors is an integer number (40767105850).

Almost surely, 2^321331131211 is an apocalyptic number.

321331131211 is a deficient number, since it is larger than the sum of its proper divisors (4805715589).

321331131211 is an equidigital number, since it uses as much as digits as its factorization.

321331131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143133.

The product of its digits is 324, while the sum is 22.

Adding to 321331131211 its reverse (112131133123), we get a palindrome (433462264334).

The spelling of 321331131211 in words is "three hundred twenty-one billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred eleven".