3120818112 has 448 divisors, whose sum is σ = 10533888000. Its totient is φ = 900218880.

The previous prime is 3120818101. The next prime is 3120818119. The reversal of 3120818112 is 2118180213.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120818119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20945014 + ... + 20945162.

Almost surely, 2^3120818112 is an apocalyptic number.

3120818112 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 3120818112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5266944000).

3120818112 is an abundant number, since it is smaller than the sum of its proper divisors (7413069888).

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

3120818112 is a wasteful number, since it uses less digits than its factorization.

3120818112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 3120818112 is about 55864.2829722176. The cubic root of 3120818112 is about 1461.3564225341.

Adding to 3120818112 its reverse (2118180213), we get a palindrome (5238998325).

The spelling of 3120818112 in words is "three billion, one hundred twenty million, eight hundred eighteen thousand, one hundred twelve".