3100000812 has 24 divisors (see below), whose sum is σ = 7547828736. Its totient is φ = 988405968.

The previous prime is 3100000811. The next prime is 3100000819. The reversal of 3100000812 is 2180000013.

It is a happy number.

It is a super-2 number, since 2×3100000812² = 19220010068801318688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3100000791 and 3100000800.

It is not an unprimeable number, because it can be changed into a prime (3100000811) 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, 5615668 + ... + 5616219.

It is an arithmetic number, because the mean of its divisors is an integer number (314492864).

Almost surely, 2^3100000812 is an apocalyptic number.

It is an amenable number.

3100000812 is an abundant number, since it is smaller than the sum of its proper divisors (4447827924).

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

3100000812 is a wasteful number, since it uses less digits than its factorization.

3100000812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231917 (or 11231915 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3100000812 is about 55677.6509202750. The cubic root of 3100000812 is about 1458.0998631361.

Adding to 3100000812 its reverse (2180000013), we get a palindrome (5280000825).

The spelling of 3100000812 in words is "three billion, one hundred million, eight hundred twelve", and thus it is an aban number.