3105121012 has 24 divisors (see below), whose sum is σ = 6219702720. Its totient is φ = 1328738880.

The previous prime is 3105121007. The next prime is 3105121021. The reversal of 3105121012 is 2101215013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65689 + ... + 102592.

It is an arithmetic number, because the mean of its divisors is an integer number (259154280).

Almost surely, 2^3105121012 is an apocalyptic number.

It is an amenable number.

3105121012 is an abundant number, since it is smaller than the sum of its proper divisors (3114581708).

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

3105121012 is a wasteful number, since it uses less digits than its factorization.

3105121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168951 (or 168949 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 3105121012 is about 55723.6126969528. The cubic root of 3105121012 is about 1458.9021915650.

Adding to 3105121012 its reverse (2101215013), we get a palindrome (5206336025).

The spelling of 3105121012 in words is "three billion, one hundred five million, one hundred twenty-one thousand, twelve".