212343030 has 48 divisors (see below), whose sum is σ = 564941520. Its totient is φ = 55306944.

The previous prime is 212343011. The next prime is 212343067. The reversal of 212343030 is 30343212.

212343030 is digitally balanced in base 3, 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 an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 212342994 and 212343012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23565 + ... + 31304.

It is an arithmetic number, because the mean of its divisors is an integer number (11769615).

Almost surely, 2^212343030 is an apocalyptic number.

212343030 is an abundant number, since it is smaller than the sum of its proper divisors (352598490).

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

212343030 is a wasteful number, since it uses less digits than its factorization.

212343030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54925 (or 54922 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 212343030 is about 14571.9947158925. The cubic root of 212343030 is about 596.5946256075.

Adding to 212343030 its reverse (30343212), we get a palindrome (242686242).

The spelling of 212343030 in words is "two hundred twelve million, three hundred forty-three thousand, thirty".