3103135812 has 48 divisors (see below), whose sum is σ = 9194478720. Its totient is φ = 886610016.

The previous prime is 3103135771. The next prime is 3103135813. The reversal of 3103135812 is 2185313013.

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

It is not an unprimeable number, because it can be changed into a prime (3103135813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2051583 + ... + 2053094.

It is an arithmetic number, because the mean of its divisors is an integer number (191551640).

Almost surely, 2^3103135812 is an apocalyptic number.

It is an amenable number.

3103135812 is an abundant number, since it is smaller than the sum of its proper divisors (6091342908).

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

3103135812 is a wasteful number, since it uses less digits than its factorization.

3103135812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104697 (or 4104689 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 3103135812 is about 55705.7969335329. The cubic root of 3103135812 is about 1458.5912181707.

Adding to 3103135812 its reverse (2185313013), we get a palindrome (5288448825).

The spelling of 3103135812 in words is "three billion, one hundred three million, one hundred thirty-five thousand, eight hundred twelve".