212113230030 has 72 divisors (see below), whose sum is σ = 597180367368. Its totient is φ = 52212483648.

The previous prime is 212113230023. The next prime is 212113230031. The reversal of 212113230030 is 30032311212.

212113230030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212113229985 and 212113230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212113230031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6957612 + ... + 6988031.

It is an arithmetic number, because the mean of its divisors is an integer number (8294171769).

Almost surely, 2^212113230030 is an apocalyptic number.

212113230030 is an abundant number, since it is smaller than the sum of its proper divisors (385067137338).

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

212113230030 is a wasteful number, since it uses less digits than its factorization.

212113230030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13945682 (or 13945666 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212113230030 its reverse (30032311212), we get a palindrome (242145541242).

The spelling of 212113230030 in words is "two hundred twelve billion, one hundred thirteen million, two hundred thirty thousand, thirty".