212000043 has 8 divisors (see below), whose sum is σ = 297544000. Its totient is φ = 133894728.

The previous prime is 212000029. The next prime is 212000057. The reversal of 212000043 is 340000212.

It is an interprime number because it is at equal distance from previous prime (212000029) and next prime (212000057).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212000043 - 2⁹ = 211999531 is a prime.

It is a super-3 number, since 3×212000043³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211999992 and 212000028.

It is not an unprimeable number, because it can be changed into a prime (212000003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859593 + ... + 1859706.

It is an arithmetic number, because the mean of its divisors is an integer number (37193000).

Almost surely, 2^212000043 is an apocalyptic number.

212000043 is a deficient number, since it is larger than the sum of its proper divisors (85543957).

212000043 is a wasteful number, since it uses less digits than its factorization.

212000043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719321.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 212000043 is about 14560.2212551870. The cubic root of 212000043 is about 596.2732360884.

Adding to 212000043 its reverse (340000212), we get a palindrome (552000255).

The spelling of 212000043 in words is "two hundred twelve million, forty-three", and thus it is an aban number.