3205133312 has 88 divisors (see below), whose sum is σ = 6642695136. Its totient is φ = 1544675328.

The previous prime is 3205133299. The next prime is 3205133317. The reversal of 3205133312 is 2133315023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205133317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3654218 + ... + 3655094.

It is an arithmetic number, because the mean of its divisors is an integer number (75485172).

Almost surely, 2^3205133312 is an apocalyptic number.

3205133312 is a gapful number since it is divisible by the number (32) 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 3205133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3321347568).

3205133312 is an abundant number, since it is smaller than the sum of its proper divisors (3437561824).

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

3205133312 is an equidigital number, since it uses as much as digits as its factorization.

3205133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 3205133312 is about 56613.8968098823. The cubic root of 3205133312 is about 1474.4001486170.

Adding to 3205133312 its reverse (2133315023), we get a palindrome (5338448335).

The spelling of 3205133312 in words is "three billion, two hundred five million, one hundred thirty-three thousand, three hundred twelve".