3120312 has 64 divisors (see below), whose sum is σ = 8578080. Its totient is φ = 940032.

The previous prime is 3120311. The next prime is 3120317. The reversal of 3120312 is 2130213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120311) 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 15 ways as a sum of consecutive naturals, for example, 22708 + ... + 22844.

Almost surely, 2^3120312 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 3120312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4289040).

3120312 is an abundant number, since it is smaller than the sum of its proper divisors (5457768).

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

3120312 is a wasteful number, since it uses less digits than its factorization.

3120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3120312 is about 1766.4404886664. The cubic root of 3120312 is about 146.1277420813.

Adding to 3120312 its reverse (2130213), we get a palindrome (5250525).

Subtracting from 3120312 its reverse (2130213), we obtain a palindrome (990099).

The spelling of 3120312 in words is "three million, one hundred twenty thousand, three hundred twelve".