212030312330 has 32 divisors (see below), whose sum is σ = 382569635520. Its totient is φ = 84608903680.

The previous prime is 212030312293. The next prime is 212030312381. The reversal of 212030312330 is 33213030212.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17753501 + ... + 17765439.

It is an arithmetic number, because the mean of its divisors is an integer number (11955301110).

Almost surely, 2^212030312330 is an apocalyptic number.

212030312330 is a deficient number, since it is larger than the sum of its proper divisors (170539323190).

212030312330 is a wasteful number, since it uses less digits than its factorization.

212030312330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16054.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212030312330 its reverse (33213030212), we get a palindrome (245243342542).

The spelling of 212030312330 in words is "two hundred twelve billion, thirty million, three hundred twelve thousand, three hundred thirty".