212310121130 has 8 divisors (see below), whose sum is σ = 382158218052. Its totient is φ = 84924048448.

The previous prime is 212310121013. The next prime is 212310121139. The reversal of 212310121130 is 31121013212.

It can be written as a sum of positive squares in 2 ways, for example, as 193224422329 + 19085698801 = 439573^2 + 138151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212310121099 and 212310121108.

It is not an unprimeable number, because it can be changed into a prime (212310121139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10615506047 + ... + 10615506066.

Almost surely, 2^212310121130 is an apocalyptic number.

212310121130 is a deficient number, since it is larger than the sum of its proper divisors (169848096922).

212310121130 is a wasteful number, since it uses less digits than its factorization.

212310121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21231012120.

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

Adding to 212310121130 its reverse (31121013212), we get a palindrome (243431134342).

The spelling of 212310121130 in words is "two hundred twelve billion, three hundred ten million, one hundred twenty-one thousand, one hundred thirty".