3201111000000 has 294 divisors, whose sum is σ = 11469143818080. Its totient is φ = 853627200000.

The previous prime is 3201110999971. The next prime is 3201111000001. The reversal of 3201111000000 is 1111023.

It is a super-2 number, since 2×3201111000000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201111000001) 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 41 ways as a sum of consecutive naturals, for example, 8822161 + ... + 9177839.

Almost surely, 2^{3201111000000} is an apocalyptic number.

3201111000000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3201111000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5734571909040).

3201111000000 is an abundant number, since it is smaller than the sum of its proper divisors (8268032818080).

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

3201111000000 is an frugal number, since it uses more digits than its factorization.

3201111000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355727 (or 355689 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 3201111000000 its reverse (1111023), we get a palindrome (3201112111023).

The spelling of 3201111000000 in words is "three trillion, two hundred one billion, one hundred eleven million", and thus it is an aban number.