103131120212 has 18 divisors (see below), whose sum is σ = 181636506702. Its totient is φ = 51237068064.

The previous prime is 103131120187. The next prime is 103131120289. The reversal of 103131120212 is 212021131301.

103131120212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2942411536 + 100188708676 = 54244^2 + 316526^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424403 + ... + 621594.

It is an arithmetic number, because the mean of its divisors is an integer number (10090917039).

Almost surely, 2^103131120212 is an apocalyptic number.

It is an amenable number.

103131120212 is a deficient number, since it is larger than the sum of its proper divisors (78505386490).

103131120212 is a wasteful number, since it uses less digits than its factorization.

103131120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046315 (or 1046156 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103131120212 its reverse (212021131301), we get a palindrome (315152251513).

The spelling of 103131120212 in words is "one hundred three billion, one hundred thirty-one million, one hundred twenty thousand, two hundred twelve".