321111100111000 has 64 divisors (see below), whose sum is σ = 751418673763680. Its totient is φ = 128441243548800.

The previous prime is 321111100110971. The next prime is 321111100111013. The reversal of 321111100111000 is 111001111123.

It is a super-2 number, since 2×321111100111000² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36411574 + ... + 44362426.

Almost surely, 2^{321111100111000} is an apocalyptic number.

It is an amenable number.

321111100111000 is an abundant number, since it is smaller than the sum of its proper divisors (430307573652680).

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

321111100111000 is a wasteful number, since it uses less digits than its factorization.

321111100111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991261 (or 7991247 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 321111100111000 its reverse (111001111123), we get a palindrome (321222101222123).

The spelling of 321111100111000 in words is "three hundred twenty-one trillion, one hundred eleven billion, one hundred million, one hundred eleven thousand".