212320230330 has 128 divisors (see below), whose sum is σ = 551016297216. Its totient is φ = 52049664000.

The previous prime is 212320230329. The next prime is 212320230347. The reversal of 212320230330 is 33032023212.

It is a junction number, because it is equal to n+sod(n) for n = 212320230297 and 212320230306.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 146326105 + ... + 146327555.

It is an arithmetic number, because the mean of its divisors is an integer number (4304814822).

Almost surely, 2^212320230330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212320230330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275508148608).

212320230330 is an abundant number, since it is smaller than the sum of its proper divisors (338696066886).

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

212320230330 is a wasteful number, since it uses less digits than its factorization.

212320230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 212320230330 its reverse (33032023212), we get a palindrome (245352253542).

The spelling of 212320230330 in words is "two hundred twelve billion, three hundred twenty million, two hundred thirty thousand, three hundred thirty".