321111000001 has 16 divisors (see below), whose sum is σ = 371042460288. Its totient is φ = 274648492800.

The previous prime is 321110999941. The next prime is 321111000029. The reversal of 321111000001 is 100000111123.

It is not a de Polignac number, because 321111000001 - 2⁷ = 321110999873 is a prime.

It is a super-2 number, since 2×321111000001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321111000071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214291 + ... + 829543.

It is an arithmetic number, because the mean of its divisors is an integer number (23190153768).

Almost surely, 2^321111000001 is an apocalyptic number.

It is an amenable number.

321111000001 is a deficient number, since it is larger than the sum of its proper divisors (49931460287).

321111000001 is a wasteful number, since it uses less digits than its factorization.

321111000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618072.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 321111000001 its reverse (100000111123), we get a palindrome (421111111124).

The spelling of 321111000001 in words is "three hundred twenty-one billion, one hundred eleven million, one", and thus it is an aban number.