212031231030 has 192 divisors, whose sum is σ = 577958105088. Its totient is φ = 53869098240.

The previous prime is 212031231029. The next prime is 212031231053. The reversal of 212031231030 is 30132130212.

212031231030 is a `hidden beast` number, since 2 + 12 + 0 + 312 + 310 + 30 = 666.

212031231030 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 junction number, because it is equal to n+sod(n) for n = 212031230994 and 212031231012.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 49852384 + ... + 49856636.

It is an arithmetic number, because the mean of its divisors is an integer number (3010198464).

Almost surely, 2^212031231030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212031231030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288979052544).

212031231030 is an abundant number, since it is smaller than the sum of its proper divisors (365926874058).

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

212031231030 is a wasteful number, since it uses less digits than its factorization.

212031231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571 (or 4568 counting only the distinct ones).

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

Adding to 212031231030 its reverse (30132130212), we get a palindrome (242163361242).

The spelling of 212031231030 in words is "two hundred twelve billion, thirty-one million, two hundred thirty-one thousand, thirty".