212330223243 has 6 divisors (see below), whose sum is σ = 306699211364. Its totient is φ = 141553482156.

The previous prime is 212330223229. The next prime is 212330223293. The reversal of 212330223243 is 342322033212.

212330223243 is a `hidden beast` number, since 2 + 1 + 2 + 330 + 2 + 2 + 324 + 3 = 666.

It is not a de Polignac number, because 212330223243 - 2⁶ = 212330223179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212330223293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11796123505 + ... + 11796123522.

Almost surely, 2^212330223243 is an apocalyptic number.

212330223243 is a deficient number, since it is larger than the sum of its proper divisors (94368988121).

212330223243 is a wasteful number, since it uses less digits than its factorization.

212330223243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23592247033 (or 23592247030 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 212330223243 its reverse (342322033212), we get a palindrome (554652256455).

The spelling of 212330223243 in words is "two hundred twelve billion, three hundred thirty million, two hundred twenty-three thousand, two hundred forty-three".