212031112130 has 16 divisors (see below), whose sum is σ = 381710549304. Its totient is φ = 84800323200.

The previous prime is 212031112129. The next prime is 212031112151. The reversal of 212031112130 is 31211130212.

It can be written as a sum of positive squares in 4 ways, for example, as 131586837001 + 80444275129 = 362749^2 + 283627^2 .

It is a super-2 number, since 2×212031112130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212031112099 and 212031112108.

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, 1441571 + ... + 1581830.

Almost surely, 2^212031112130 is an apocalyptic number.

212031112130 is a deficient number, since it is larger than the sum of its proper divisors (169679437174).

212031112130 is a wasteful number, since it uses less digits than its factorization.

212031112130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030421.

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

Adding to 212031112130 its reverse (31211130212), we get a palindrome (243242242342).

The spelling of 212031112130 in words is "two hundred twelve billion, thirty-one million, one hundred twelve thousand, one hundred thirty".