321111000028 has 24 divisors (see below), whose sum is σ = 691623693152. Its totient is φ = 127032922944.

The previous prime is 321110999941. The next prime is 321111000029. The reversal of 321111000028 is 820000111123.

It is a super-2 number, since 2×321111000028² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321110999969 and 321111000014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321111000029) 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, 441086175 + ... + 441086902.

Almost surely, 2^321111000028 is an apocalyptic number.

It is an amenable number.

321111000028 is an abundant number, since it is smaller than the sum of its proper divisors (370512693124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321111000028 is a wasteful number, since it uses less digits than its factorization.

321111000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882173101 (or 882173099 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The spelling of 321111000028 in words is "three hundred twenty-one billion, one hundred eleven million, twenty-eight", and thus it is an aban number.