212330043 has 12 divisors (see below), whose sum is σ = 320034000. Its totient is φ = 135398736.

The previous prime is 212330033. The next prime is 212330101. The reversal of 212330043 is 340033212.

It is not a de Polignac number, because 212330043 - 2²⁴ = 195552827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212329998 and 212330025.

It is not an unprimeable number, because it can be changed into a prime (212330003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512668 + ... + 513081.

It is an arithmetic number, because the mean of its divisors is an integer number (26669500).

Almost surely, 2^212330043 is an apocalyptic number.

212330043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212330043 is a deficient number, since it is larger than the sum of its proper divisors (107703957).

212330043 is a wasteful number, since it uses less digits than its factorization.

212330043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025778 (or 1025775 counting only the distinct ones).

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

The square root of 212330043 is about 14571.5490940394. The cubic root of 212330043 is about 596.5824626899.

Adding to 212330043 its reverse (340033212), we get a palindrome (552363255).

The spelling of 212330043 in words is "two hundred twelve million, three hundred thirty thousand, forty-three".