3120321132 has 72 divisors (see below), whose sum is σ = 8396060400. Its totient is φ = 974274048.

The previous prime is 3120321121. The next prime is 3120321133. The reversal of 3120321132 is 2311230213.

3120321132 is a `hidden beast` number, since 312 + 0 + 321 + 1 + 32 = 666.

It is a super-2 number, since 2×3120321132² = 19472807933611522848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3120321133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35248 + ... + 86504.

It is an arithmetic number, because the mean of its divisors is an integer number (116611950).

Almost surely, 2^3120321132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3120321132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4198030200).

3120321132 is an abundant number, since it is smaller than the sum of its proper divisors (5275739268).

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

3120321132 is a wasteful number, since it uses less digits than its factorization.

3120321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51375 (or 51370 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3120321132 is about 55859.8346936330. The cubic root of 3120321132 is about 1461.2788463511.

Adding to 3120321132 its reverse (2311230213), we get a palindrome (5431551345).

The spelling of 3120321132 in words is "three billion, one hundred twenty million, three hundred twenty-one thousand, one hundred thirty-two".