212312113230 has 96 divisors (see below), whose sum is σ = 593366645664. Its totient is φ = 48477241344.

The previous prime is 212312113219. The next prime is 212312113261. The reversal of 212312113230 is 32311213212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212312113197 and 212312113206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1325134 + ... + 1476686.

It is an arithmetic number, because the mean of its divisors is an integer number (6180902559).

Almost surely, 2^212312113230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212312113230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296683322832).

212312113230 is an abundant number, since it is smaller than the sum of its proper divisors (381054532434).

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

212312113230 is a wasteful number, since it uses less digits than its factorization.

212312113230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152530 (or 152523 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212312113230 its reverse (32311213212), we get a palindrome (244623326442).

The spelling of 212312113230 in words is "two hundred twelve billion, three hundred twelve million, one hundred thirteen thousand, two hundred thirty".